Prevertebral fluid collection

The CT scan showed a well-defined fluid-filled collection with thick walls in the prevertebral space at the level of C3 and C4, compressing the retropharyngeal space and bulging into the laryn-gopharynx (figures 2-5). The collection appeared to be arising from the upper screw of metal prosthesis used for cervical spine stabilisation Acute calcific prevertebral tendinitis, also known ascalcific retropharyngeal tendinitis and calcific tendi-nitis of the longus colli, is a clinical syndrome that wasdescribed originally by Hartley in 1964 wasshown by Ring and colleagues in 1994 (3) to be due tohydroxyapatite deposition disease. The condition af-fects adults within age range of 21 to 81years, although most patients are between 30 and 60years old (4). The presumed mechanism of disease i Acute prevertebral calcific tendinitis: A nonsurgical cause of prevertebral fluid collection Todd A. Kupferman, MD; Clifford H. Rice, MD; Linda Gage-White, MD, PhD Abstract Calcific tendinitis ofthe prevertebral muscles is a rare clinical entity. Its nonspecific presenting symptoms (e.g., retropharyngeal space infection) may mimic an infec. Axial fat-suppressed gradient-echo MRI scan shows fluid collection (arrowheads) filling retropharyngeal space from side to side with mild mass effect. There is also hyperintensity in right longus colli muscle and other prevertebral muscles ( curved arrow ) The fluid originates in the prevertebral space, but it may extend to the retropharyngeal space. In contrast to retropharyngeal abscess, no appreciable rimlike enhancement is seen, and the fluid collection tapers inferiorly ( 33 - 35 )

In general, the prevertebral component is measured on sagittal imaging as the distance between the anterior border of the vertebral body and the air within the pharynx/trachea. Naturally there is a near-normal distribution of thickness in normal patients depending on body build and expected variation The thickness of the prevertebral soft tissue (PVST) has long been considered a valuable radiographic measurement in evaluating possible injury to the cervical spine. 1-6 Analysis of the PVST is helpful in detecting subtle osseous or ligamentous injuries that might go unrecognized. In our experience, the normal values based on radiographic studies are commonly used in multidetector CT (MDCT. The RS is separated from the prevertebral space the musculofascial sheath associated with the prevertebral muscles at the level the longus colli and longus capitis (Figs. 142.3A, 147.1, 147.2, 148.1, and 148.2). The spaces come into contact directly with the posterior skull base at the craniocervical junction The fluid collection may be mildly complex in signal intensity, and peripheral enhancement may be seen if contrast material is administered . A subdural abscess would not be expected to show gradient susceptibility or bright T1 hyperintensity unless blood products are present in the abscess as well MRI and CT findings are consistent with T5-6 osteomyelitis-discitis with contiguous right prevertebral/right pleural collection. MRI hasn't shown epidural collections. Drainage confirmed a purulent content within the collection: S . aureu

A prevertebral fluid collection is seen, representing a hematoma with mild compression and narrowing of the adjacent airway. Of note, the patient had a prior fusion of C4-C6 with hardware removal. ACDF, anterior cervical discectomy and fusion. Perioperative corticosteroids Repeat MRI showed significant improvement of the prevertebral, nonenhancing walled fluid collection (Figure 7). Based on a phone follow-up a couple of months later, the patient had completed the adalimumab trial without recurrence of neck pain. It was confirmed that patient has been received adalimumab and not the placebo Here, we discuss the presentation, imaging identification, treatment, and recovery of retropharyngeal fluid collection in 2 COVID-19 cases. The significance of this article is to suggest conservative management as a viable treatment option for retropharyngeal fluid collection, as opposed to incision and drainage, in the setting of COVID-19 A repeat MRI demonstrated decreased mediastinal and prevertebral fluid collection, but did demonstrated possible osteomyelitis at the levels of the C6 and C7 vertebral bodies . The patient again returned to the operating room in conjunction with an ear nose and throat surgeon. A nasogastric (NG) tube was passed, and the ENT surgeon confirmed.

Acute Prevertebral Calcific Tendinitis: A Nonsurgical

  1. Various degrees of prevertebral fluid collection (prevertebral hyperintensity) were demonstrated in 76 patients. These magnetic resonance imaging abnormalities were significantly associated with initial cervical segmental instability as judged by flexion-extension radiographs
  2. Contrast-enhanced computed tomography (CT) of the neck detected a non-ring--enhancing fluid collection within the prevertebral space anterior to the bodies of C1 through C7 (figure 2, A). A dense calcification was seen within the prevertebral musculature at the level of C2 (figure 2, B)
  3. the otolaryngologist unfamiliar with prevertebral calcific tendinitis of the longus colli. There may be temptation to drain a fluid collection or to admit the patient for intravenous antibiotics for retropharyngeal phlegmon. However, effective treatment can be achieved with steroids or non-steroidal anti-inflammatory medications. Symptoms typicall
  4. Fluid collection partially surrounds the descending aorta with edematous changes including the bodies of T11 and T12, and extends approximately two-thirds of the way of the L1 vertebral body
  5. sal sinuses, middle ears, and prevertebral space. Retropharyngeal nodes are often large in chil­ dren and begin to atrophy before puberty. Imaging Approach We recommend that the interpretive ap­ proach to a retropharyngeal space collection include an evaluation of multiplanar imaging for four characteristics: distribution of fluid

The prevertebral space is a potential space that lies anterior to the spinal column in the midline and is formed by the alar fascia anteriorly and the prevertebral fascia posteriorly ( Fig. 77-7 ). 1 Infection of the prevertebral space is usually due to infection that originates in the spine itself, the classic example being tuberculous. The prevertebral space is a potential space that is located between the anterior aspect of the vertebral body and the prevertebral fascia. of hypodensity (arrow) anterior to the vertebral bodies and the longus colli muscles which probably represents a fluid collection in the retropharyngeal soft tissues without definite abscess formation.. M79.89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2021 edition of ICD-10-CM M79.89 became effective on October 1, 2020. This is the American ICD-10-CM version of M79.89 - other international versions of ICD-10 M79.89 may differ. Applicable To There was an associated prevertebral fluid collection extending from C1 to C4 (arrowhead). These findings were consistent with calcific retropharyngeal tendinitis. Follow-up T2-weighted MRI (B) showed resolution of the above changes

Multiplanar CT and MRI of Collections in the

  1. the prevertebral musculature of the cervical spine, which is separated from the retropharyngeal space by the prever-tebral layer of cervical fascia. These muscles extend from the inferior cervical vertebrae and the superior thoracic vertebrae and are attached to the superior cervical verte-brae and the anterior tubercle of atlas. Their main func
  2. Magnetic resonance imaging, useful in detecting prevertebral fluid collection, may not recognize the calcium depositions. CT is the gold standard for diagnosing ACTLC as it can detect calcific deposition at the longus colli and prevertebral edema. Enhancement around the effusion should shift the diagnosis towards an abscess.3,6,7,9,1
  3. Retropharyngeal calcific tendonitis (RCT) is an uncommon, self-limiting condition that is often omitted in the differential diagnosis of a retropharyngeal fluid collection. This condition mimics a retropharyngeal abscess and should be considered when evaluating a fluid collection in the retropharyngeal space. Although calcific tendonitis at other sites has been well described in the medical.
  4. The patient was later taken to the operating room for incision and drainage of the prevertebral space; however, no hematoma or fluid collection was found and only soft tissue edema was evident. The patient was admitted to the intensive care unit for continued monitoring and extubated without incident after three days of observation
  5. showed a prevertebral hematoma and pneumomediastinum from C2 to T3 spinal level without vertebral fracture. Seven days later, repeat CT showed an increased amount of mediastinal and prevertebral fluid collection extending to the upper neck level with airway compression
  6. Approach to prevertebral fluid collections: Aspirate for micro if possible If it's an abscess, think about the SOURCE: Hematogenous Direct spread (oropharyngeal, often anaerobes) Management: medical vs surgical drainage Medical management if: diskitis, osteomyelitis, phlegmon (inflamed/purulent soft tissue) Surgical drainage if: Epidural abscess Cord compression Spinal instability (higher.
  7. Prevertebral acute calcific tendinitis was originally described in 1964 by Hartley and subsequently shown to be due to hydroxyapatite deposition by Ring and colleagues in 1994. Longus colli are bilateral neck flexors which make up bulk of prevertebral space along with longus capitus. Divided from retropharyngeal space, composed of fatty tissue.

Emergency Imaging Assessment of Acute, Nontraumatic

Inflammation that affects your retroperitoneal space is a serious medical condition. It has a high mortality rate. However, early diagnosis and treatment can improve your outlook A retropharyngeal abscess typically appears as a large retropharyngeal fluid collection with rounded margins, pronounced mass effect, and rim enhancement (Figure 4). 9 The source of the infection may be a ruptured, suppurative retropharyngeal node or a penetrating foreign body. In older patients, ventral extension of prevertebral abscess.

Perivertebral space Radiology Reference Article

Normal Thickness and Appearance of the Prevertebral Soft

On the fourth day of admission, follow-up MRI revealed a minimal amount of prevertebral fluid collection along the LCM. The patient's symptoms resolved rapidly with pain control by non-steroidal anti-inflammatory drugs (NSAIDs) over three days, along with a reduction in the CRP level (CRP 0.9 mg/dL). No microorganisms were cultured A 2-day follow-up CT examination and a 4-day follow-up MR examination (Fig. 3a, b) demonstrated progressive resolution of the prevertebral edema and resorption of the retropharyngeal fluid collection. The patient recovered uneventfully and was discharged 5 days later A neck CT scan with intravenous contrast showed a fluid collection in the prevertebral space, with no peripheral contrast uptake, extending from C2 to C5 and associated with calcification in the most cranial portion. These findings are compatible with longus colli tendinitis (Figs. 1 and 2)

showing the contrast-enhancing fluid accumulation, inflammatory lymph nodes, and bone destruction (3). MRI can show prevertebral fluid collection and prevertebral swelling, but 346. Fig. 2. Calcification anterior to C1-C2 (small arrows) and soft tissue swelling (large arrows); A) sagittal bon Notice the prevertebral soft tissue swelling in the case on the right. Notice that at the thoracic level, there is also a epidural fluid collection, but it is located posteriorly. This resuted from the T-spine fracture. Continue with the axial images. Type III odontoid fracture A soft tissue neck CT demonstrated small fluid densities surrounding bilateral C2 C3 articulations, and a 5 mm × 11 mm collection in the left anterior prevertebral space . Download : Download high-res image (456KB) Download : Download full-size image; Fig. 2 Prevertebral fluid collection icd 10 keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this websit Prevertebral fluid collection was also seen extending from C2 to C7 vertebral level. Contrast study revealed avid enhancement of the juxtra-osseous soft tissue component (Fig. 5, 6). His chest radiograph appeared normal except for a small calcified granuloma in the left mid zone (Fig. 7). In view of these imaging findings, diagnostic.

Sudden Onset of Paraplegia: T2 and T3 Collapse with

Diffuse longus colli muscle swelling with high signal in the prevertebral space will be present in T2-weighted MRI. 5 An MRI study may be helpful to differentiate fluid and effusion more accurately. 9. Acute prevertebral calcific tendinitis is a self-limited condition The prevertebral fluid collections in this entity tend to be smooth, linear/lenticular and do not contain an enhancing wall (as one may expect with an abscess). (3) CONCLUSION Acute retropharyngeal tendonitis is a cause of acute neck pain that can mimic infection (retropharyngeal abscess, pharyngitis or peritonsilar abscess) 2. Kupferman TA, Rice CH, Gage-White L. Acute prevertebral calcific tendinitis: a nonsurgical cause of prevertebral fluid collection. Ear Nose Throat J 2007;86:164-166. Figure MRIs T2-weighted MRI (A) revealed abnormal thickening and hypointensity of the longus colli tendon anterior to C1 and C

This is the first report of acute retropharyngeal calcific tendinitis with calcification anterior to the C4-5 disc and prevertebral fluid collection in a rheumatoid arthritis (RA) patient with. This was followed by edema (26%), effusions or fluid collections (15%), soft-tissue swelling or thickening (11%), and inflammation (4%). Follow-up imaging at 1 year showed complete resorption of calcification and total resolution of the prevertebral soft-tissue swelling on repeat CT and MRI in 1 case report The importance of this finding lies in the need to differentiate this effusion from retropharyngeal infection.We present three cases of fluid collections in the retropharyngeal space associated with acute calcific prevertebral tendinitis, an inflammatory condition caused by deposition of calcium hydroxyapatite in the superior oblique tendon.

Retropharyngeal and Prevertebral Space Inflammatory

  1. The prevertebral space is located directly posterior to the danger space and houses the levator scapulae, splenius capitis, scalenes, and splenius cervicis muscles. Fluid collection: There are a variety of disease pathologies that may cause a fluid collection in the RPS. These include foreign body ingestion, hematoma, angioedema.
  2. A phlegmon is a localized area of acute inflammation of the soft tissues. It is a descriptive term which may be used for inflammation related to a bacterial infection or non-infectious causes (e.g. pancreatitis). Most commonly, it is used in contradistinction to a walled-off pus-filled collection (), although a phlegmon may progress to an abscess if untreated
  3. Retropharyngeal swelling, prevertebral fluid collection, inflammatory neck pain INTRODUCTION The first report in the 1960s of acute calcific tendinitis of the longus colli muscle as a cause of neck pain was followed by a few other articles[1,2]. However, recent years have seen an increase in publications[2]. Typical signs include neck pain, a.
  4. Magnetic resonance imaging (MRI) showed a fluid collection within the prevertebral soft tissues with calcification in the proximal fibers of the longus colli muscle . Computed tomography (CT) confirmed calcifications within the longus colli muscle and tendon . The imaging findings were consistent with calcific tendintis of the longus colli muscle
Calcific retropharyngeal tendinitis | Neurology

Spinal Hematomas: What a Radiologist Needs to Know

Once initiated, a deep neck infection can progress to inflammation and phlegmon or to fulminant abscess with a purulent fluid collection. This distinction is important because the treatment of these 2 entities is very different. The prevertebral space is located anterior to the vertebral bodies and posterior to the prevertebral division of. Acute aseptic tendinitis of the longus colli muscle (retropharyngeal tendinitis) is extremely rare and was first described by Hartley and Fahlgren in 1964. 1 Due to the typically sub-acute onset of extremely severe neck pain—and more seldom headache—painful restriction of movement in the cervical spine and increased body temperature, retropharyngeal tendinitis is an important differential. Retropharyngeal calcific tendinitis, also known as acute calcific prevertebral tendinitis, is a rare disease which was first described by Hartley in 1964 . Calcium hydroxyapatite deposition in the longus colli muscle and associated inflammation is a principal etiology of this disease. Because of the retropharyngeal fluid collection and. An MRI study obtained in February 2017 revealed a prevertebral fluid collection spanning C4-5, contiguous with the C5-6 disc space. On reflection, this was evident on an MRI scan in 2012 but had significantly increased in size. With this time course in mind, it was thought likely to be a chronic inflammatory reaction to the disc prosthesis

Initial chest computed tomography (CT) showed a prevertebral hematoma and pneumomediastinum from C2 to T3 spinal level without vertebral fracture. Seven days later, repeat CT showed an increased amount of mediastinal and prevertebral fluid collection extending to the upper neck level with airway compression The typical characteristics of this entity are calcifications at the superior insertion of the longus colli tendons at the C1-C2 level and fluid collection in the retropharyngeal space. The differential diagnosis includes a retropharyngeal abscess, infectious spondylitis or traumatic injury

On the night of admission, an additional contrast enhanced MRI examination was carried out (Fig. 1E, F) to exclude the possibilities of retropharyngeal infection and strain.Contrast-enhanced T1-weighted MRI with fat suppression showed a significant reduction in the amount of prevertebral fluid collection, with peripheral enhancement in the prevertebral region of the cervical spine A retropharyngeal soft-tissue fluid collection extended from C1-C6 (Figure 2a, c, d). Magnetic resonance imaging demonstrated diffuse retropharyngeal contrast enhancement without evidence of wall enhancement, high SI on T2w images, and no diffusion restriction (Figure 3, 4) There is a larger more extensive posterior collection, subdural in location rather than epidural, which extends from the level of L5/S1 superiorly for a distance of at least 20 cm. It extends superior to the imaged field-of-view at the inferior border of T11. On cross-section, this collection causes severe compression of the cauda equina from.

Thoracic paravertebral abscess and osteomyelitis

  1. Possible very small fluid collection in the epidural space on the right at the inner aspect of the L2/3 foramen. Response Based on the documentation of 'psoas' in the MRI report VICC considers M60.08 Infective myositis other is the appropriate code to assign for this paravertebral abscess, following index entry Abscess, psoas nontuberculous
  2. These calcifications are typically within the prevertebral space at the C1-C2 level but can occur anywhere between C1-T3. Identifying calcification within this classic location is an important diagnostic feature to distinguish it from a potentially life-threatening retropharyngeal abscess, which presents as a rim-enhancing fluid collection.
  3. G06.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2021 edition of ICD-10-CM G06.1 became effective on October 1, 2020. This is the American ICD-10-CM version of G06.1 - other international versions of ICD-10 G06.1 may differ. Applicable To
  4. The differential diagnosis of a retropharyngeal fluid collection on imaging is extensive, and the edema associated with tendonitis can be confused with a retropharyngeal abscess. Pathognomonic radiologic findings in RCT are the presence of a prevertebral effusion from C1 to C4 and calcifications below the anterior arch of C1
  5. Prevertebral soft-tissue edema is reported to be associated with postoperative dysphagia that progresses after ACDF and peaks on postoperative Days 3-4. 16,18 Thereafter, it gradually improves and is normalized in 6 weeks. 14 The site most prone to swelling lies between the lower endplates of C-3 and C-4; changes at the lower level are milder.

A contrast enhanced CT of the neck and chest showed fluid collections in multiple deep neck spaces including retropharyngeal, prevertebral, parapharyngeal and visceral neck spaces, with extension into the mediastinum (Fig 1). Unfortunately, the extent of the infection was underestimated and the patient was discharged home with antibiotics prevertebral muscles muscles deep to the prevertebral fascia on the anterior surface of the cervical and superior three thoracic vertebrae, symmetrically placed on each side of the median plane, including the longus colli, longus capitis, rectus capitis anterior, and rectus capitis lateralis muscles; some authorities define the group as medial to the. Longus colli (prevertebral) calcific tendinitis results from calcium hydroxyapatite deposition within the tendon. While the bilateral longus colli muscles extend from the atlas to the upper thoracic vertebral level, calcium hydroxyapatite crystals typically deposit at the C1-C2 level 1,2 (as seen in this case). Associated inflammation of the tendon can result in prevertebral fluid that may be. In CT and MRI, An amorphous calcification was detected, that was 8.0x6.4x3mm anterior to C1-C2 and retropharyngeal space fluid collection was also detected at the same period of time . Finally, acute calcific prevertebral tendinitis was our impression and she was started on nonsteroidal anti-inflammatory drugs per oral

Acute post-operative airway complications following

Improvement in the prevertebral non-enhancing walled fluid collection. One week: Oh et al. [7] 25 / M: Radiograph, 2 months The prevertebral swelling markedly improved. Two months: Kim et al. [8] 41 / F: CT, 1 week Decrease in the calcific deposit and retropharyngeal soft tissue swelling. Ten days: Narváez et al. [9] 47 / F: CT, 5 month Magnetic resonance imaging (MRI) is the modality of choice for evaluating soft tissue damage along the spine in the emergency setting, yet access and fast protocol availability are limited. We assessed the performance of a sagittal T2-weighted DIXON turbo spin-echo sequence and investigated whether additional standard sagittal T1-weighted sequences are necessary in suspected spinal fluid.

Fig 4: Sagittal T2, Fig 5: Sagittal T1, Fig 6: Sagittal T1 with contrast & Fig 7: Axial T1 with contrast of the cervical spine demonstrating significant large fluid collection in the anterior prevertebral soft tissues extending from the C3 to C5. There is in addition posterior protrusion of the epidural collection with compression on the cord Prevertebral fascia (a.k.a. vertebral fascia) (Figures 2, 3, 4, 12, absolute consensus that drainage is indicated when there is a suppurative infection and/ or radiological evidence of a fluid collection or air in the soft tissues b CT in the soft tissue kernel clearly shows a prevertebral fluid collection with rim enhancement, but also posterior extension in the spinal canal, with enhancement. The diagnosis is a tuberculous spondylodiscitis Magnetic resonance imaging (MRI) showed a fluid collection within the prevertebral soft tissues with calcification in the proximal fibers of the longus colli muscle . Computed tomography (CT) confirmed calcifications within the longus colli muscle and tendon . The imaging findings were consistent with calcific tendintis of the longus colli muscle Prevertebral space. infections by Broughton indicated that 50% of deep neck infections can be managed nonsurgically in patients with small fluid collections and no respiratory compromise. Other studies by Plaza 40) and McClay 41).

A Rare Case of Neck Pain: Acute Longus Colli Calcific

  1. ent azygous arch, and confirmed the ventriculopleural catheter disruption (Fig. 2). SVC thrombosis was considered as a possible etiology, and a CT of the chest with contrast.
  2. otomy site dorsal aspect of L3-L4, and an enhancing intradural abscess extending from L2-L3 to the sacrum. Vertebral body heights are preserved
  3. al wall, soft tissue of the neck, or breast seroma. Code 49405 should be used to report catheter drainage of a pancreatic pseudocyst or a renal abscess

Lateral radiograph of the airway taken in inspiration and extension shows massive thickening of the prevertebral soft tissues. the C2 vertebral body (above right). Axial image with soft tissue windows (below) from the same CT shows a low density fluid collection with an enhancing rim to the left of midline in the retropharyngeal space. Home. Peripherally enhancing large well-defined hyperintense thick fluid collection in the region of C3-C5 vertebral bodies, prevertebral region and anterior subligamentous space from C2-C7 level causing central canal stenosis with cord compression and cord edema. Patient taken for emergency surgery through Anterior Cervical approach MRI of the spine, with and without contrast, showed osteomyelitis at T12, and a paraspinal soft tissue fluid collection at T12-L1 with epidural extension from T12 through L2 and displacement of.

A fluid collection within the peritoneum Free air within the peritoneum Blockage of the bowel lumen Failure of bowel peristalsis. The prevertebral space occupied by the abdominal aorta Tumor masses Intraabdominal calcifications The shape and size of the kidneys (A) Sagittal fat-suppressed turbo spin echo T 2-weighted image shows two possible foci of spondylodiscitis, at C3-C4 and C5-C6, with prevertebral soft tissues thickening and edema, likely a phlegmon, and a ventral epidural fluid collection from C2 to C5 compressing the spinal cord, likely an abscess. No contrast agent was injected due to. Abstract Purpose Cystic masses of the supraclavicular fossa (SCF) are uncommon. The diverse anatomical structures within the SCF create an extended differential diagnosis for any mass arising in the SCF. This study describes the presenting symptoms, radiologic findings, medical and surgical management, and posttreatment outcomes of various cystic mass presenting in the SCF In any child with neck stiffness, drooling, and fever, a lateral neck radiograph or CT scan should be obtained to look for prevertebral soft tissue swelling or fluid collection. In any child with concern for mediastinitis, prompt surgical drainage is imperative and may require video-assisted thoracoscopic drainage

The CT scan of the neck with contrast was done and it revealed a prevertebral retropharyngeal low attenuation collection spanning from C1 to C5 (Figure 1). It also revealed dystrophic calcifications anterior to C1 and C2 (Figure 2). There was no enhancement of the fluid collection Imaging may reveal a retropharyngeal fluid collection leading to the presumed diagnosis of retropharyngeal abscess. Recognition of this uncommon presentation is important to prevent unnecessary surgical incision and drainage. A 44-year-old otherwise healthy male presented with a 2-week history of progressive neck pain, stiffness, and odynophagia Facet arthropathy: The spine is just a bunch of joints stacked on top of each other. It can get arthritis just like your knees or hands. Fluid can build up in the facet joints in a similar fashion, sometimes even causing a cyst to form (synovial cyst). I would consider meeting a pain management doctor to see if injections in the facets can help

Drainage of fluid collections . . It must be stressed that up to 20% of patients undergoing nonoperative management require surgical intervention within 24 hours, and lack of improvement or worsening and deterioration requires timely surgical intervention. Esophageal Sten The close proximity of these infections to the airways, orbits, and brain means that complications of head and neck infections can be catastrophic. The contrast-enhanced coronal neck CT shown demonstrates a left peritonsillar abscess (yellow arrow) with extension into the pyriform sinus (red arrow) and an adjacent enlarged lymph node (white. The purpose of our educational exhibit is to: 1. Illustrate the normal radiologicanatomy of the retropharyngeal space. 2. Describe and illustrate disease processes thatcauseretropharyngeal fluid collection. 3. Discuss ways to differentiatethe different disease entities Drainage of a superficial neck abscess is a relatively simple procedure. It is performed under general anesthesia using a mask to deliver the sleepy air. Local anesthetic (numbing medication) is injected into the area. The physician will then feel the lump caused by the abscess to find the area most full of pus

Retropharyngeal abscess in a 3-year-old girl with fever and throat pain, (a) Lateral neck radiograph shows diffuse prevertebral soft tissue swelling (arrows), (b) CT+C demonstrates a mildly enhancing, thick- walled retropharyngeal fluid collection (arrow), these findings are indicative of an abscess 18 Subcutaneous, extraperiosteal fluid collection with poorly defined margins caused by: pressure of the presenting part of scalp against the dilating cervix (tourniquet effect of the cervix) during delivery. It's diffuse, may extend across the midline and across suture lines , may ecchymotic swelling of the scalp Important differential diagnoses include hemorrhage, disc herniation, granulation tissue, tumor, degeneration and fluid collection . Fig. 6 On the other hand, early MRI may show prevertebral and epidural inflammation with normal vertebral bodies (Figs. 5, 11) fluid collections, extension of inflammatory changes well beyond the abscesses Acute inflammation of breast tissue and axillary lymph nodes with cultures Air in prevertebral planes Presence of inflammation and stigmata of perforation with contained collection Mediastinal inflammation or emphysema IV Esophageal wal

A retropharyngeal fluid collection extending through the naso-oro-hypopharynx levels was found which also extended into the deep fascial planes of the neck. Craniocervical junctional ligaments and membranes were injured ( Figs. 4 and 5 ). The fluid intensity was homogeneous and almost the same as cerebrospinal fluid (CSF) in MRI sequences PREVERTEBRAL ABSCESS W PROBABLE INFECTION S1 SEGMENT OSTEOMYELITIS I feel that we should go with- 63047, W NO 63048 FOR L4-5 AND 63267 FOR L5-S1 G06.1, M46.27, M46.47 was a smaller epidural fluid collection full of pus. This was debrided and also irrigated widely. The L4 nerve roots, the L5 nerve roots and the S1 nerve roots were all. The left psoas muscle shows peripherally enhancing communicating retroperitoneal and epidural fluid collection as well as multiple peripherally enhancing left psoas fluid collections. on the CT scan shows findings consistent with TB osteomyelitis with destruction of T12 and L1 vertebral bodies with prevertebral and epidural collections. Radiography of the lateral neck may reveal widening of the prevertebral space, loss of cervical lordosis because of muscle spasm, a soft tissue mass in the posterior pharynx, or rarely, air fluid.

and fluid collection in the retropharyngeal space in plain radiograph. Usually, calcific lesion can be detected by plain radiograph. We introduce 2 case of prevertebral calcific tendinitis nonvisible in plain radiograph, but the diagnosis was confirmed on computerized tomography Visceral content leakage and fluid collection formation is a common event, and free air can be present when airways or gastrointestinal tracts are involved . The perforation site is usually along the device's course and should always be investigated in order to direct and facilitate intraoperative identification and repair Spennato P, Rapana A, Sannino E, et al. Retropharyngeal cerebrospinal fluid collection as a cause of postoperative dysphagia after anterior cervical discectomy. Surg Neurol 2007;67:499-503. 4

Acute Calcific Tendinitis of the Longus Colli Muscle | EuroradAcute Calcific Tendonitis of the Longus Colli | OchsnerWhy Does This Toddler Refuse to Walk? | Consultant360Airway is not compromisedLongus Colli Tendinitis | Anesthesia Key

Fluid in esophagus (Fig. 13b) and incomplete suppression of the prevertebral fat can sometimes simulate prevertebral edema. Prominent veins in the interspinous region demonstrating high signal on STIR images should not be confused with edema associated with interspinous injuries which appear as ill-defined area of high signal, while the veins. The otolaryngologist reviewed the imaging and felt that the retropharyngeal fluid collection was unlikely to be infectious, owing to the lack of rim enhancement. The diagnostic images were also reviewed by members of the spine surgery service, who felt the findings were not consistent with an epidural abscess or infection involving the spine Cervical radiography was requested, demonstrating calcification in the prevertebral region, at C1-C2 level, and subsequently, computed tomography, which demonstrated the presence of calcification in the longus colli muscle with adjacent soft tissues swelling and fluid collections in the retropharyngeal space, suggesting acute calcific. •CECT, fluid collection in the retropharyngeal space (arrow) •10-13 HU. Longus Colli Tendinitis •Imaging: -Smooth, mild expansion of RPS without peripheral enhancement -Prevertebral calcification(s) at C1-C2, not always present, however, when present it clinches diagnosis. •Treatment: -Self limiting, anti-inflammatory medications