Vertebral Pneumatocyst

Laufer, L.; Schulman, H.; Hertzanu, Y.

doi:10.1097/00007632-199602010-00028

Cited by 28 publications

(25 citation statements)

References 10 publications

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“…It has been postulated that the gas develops spontaneously, 17 that the gas accumulates within a pre-existing simple fluid-filled cyst or ganglion or that nitrogen relapses from adjacent joints. 11 In addition, it has been proposed that extension of intervertebral disc gas through a degenerate endplate may cause pneumatocysts, with trauma facilitating its passage. 18 The natural progression of these gas-filled cavities are equally unclear.…”

Section: S84mentioning

confidence: 99%

‘Abnormal’ cervical imaging?: Cervical pneumatocysts – A case report of a cervical spine pneumatocyst

Renshaw

Patel

Boctor

et al. 2015

Journal of Orthopaedics

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PneumatocystComputed tomography a b s t r a c t To our knowledge there are only 15 reported cases of pneumatocysts in the cervical spine, but awareness of their existence should help the clinician when diagnosing abnormalities in radiological images. When faced with intravertebral gas, in addition to considering more sinister causes, one should consider the differentials including pneumatocysts. Despite our relative lack of understanding of these benign lesions the knowledge that they can change over time should prevent unnecessary testing or treating.We present a patient who fell down stairs and was found to have cervical intravertebral gas, on computed tomography imaging, with the typical appearance of a pneumatocyst.

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Section: S84mentioning

confidence: 99%

‘Abnormal’ cervical imaging?: Cervical pneumatocysts – A case report of a cervical spine pneumatocyst

Renshaw

Patel

Boctor

et al. 2015

Journal of Orthopaedics

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“…To our knowledge, only seven cases of cervical pneumatocysts have been reported in the English literature [2][3][4][5][6][7][8]. Six of the seven lesions occurred in the vertebral bodies [2][3][4][5]7].…”

Section: Natural Course Of An Intraosseous Pneumatocyst Of the Cervicmentioning

confidence: 99%

“…A series by Laufer et al [6] included one pneumatocyst in the lateral mass of the cervical vertebra. In four of the seven cervical pneumatocysts previously reported, no communication with the disk space or the spinal canal was seen on CT [3,[6][7][8]. However, two cases described by Ozdoba and Kurtz [4] and Larsen and Smievoll [5] had communication with the spinal canal.…”

Section: Natural Course Of An Intraosseous Pneumatocyst Of the Cervicmentioning

confidence: 99%

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Natural Course of an Intraosseous Pneumatocyst of the Cervical Spine

Yamamoto

YOSHIYA

Kurosaka

et al. 2002

American Journal of Roentgenology

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667ntraosseous gas collection is observed in various disorders. A pneumatocyst is a rare, gas-containing lesion in the bone. This condition is most frequently encountered in the ilium and the sacrum, adjacent to the sacroiliac joints [1]. Pneumatocysts in the cervical spine are rarely seen. The natural course of pneumatocysts is obscure. We report a case of a cervical intraosseous pneumatocyst in association with degenerative disk disease. The pneumatocyst radiologically changed to a fluid-filled cyst and was subsequently replaced by granulation tissue. To our knowledge, the radiologic phenomenon has never been described in the English-language literature. Case ReportA 56-year-old woman consulted an orthopedic unit complaining of neck pain and stiffness of 6 months' duration. Standard radiographs of the cervical spine revealed an osteolytic lesion in C5. Metastatic bone disease in the cervical spine was suspected, and the patient was referred to the Rokko Island Hospital. On physical examination, mild tenderness to palpation was noted over both cervical paravertebral muscles. Only mildly decreased touch sensations were present over the C7 dermatome on the left side. Other neurologic findings were normal.An anteroposterior radiograph of the cervical spine revealed a small round focal radiolucent lesion in the C5 vertebral body. Lateral radiographs revealed degenerative disk disease at the C5-C6 and C6-C7 levels, with narrowed disk spaces and deformed vertebral bodies (Fig. 1A). An oblique radiograph of the cervical spine clearly showed the radiolucent lesion in the C5 vertebral body (Fig. 1B). The patient subsequently underwent MR imaging, CT, and 99m Tc scintigraphy to evaluate the lesion. Sagittal T1-and T2-weighted MR images showed a small homogeneous hypointense lesion in the C5 vertebral body adjacent to the C5-C6 intervertebral disk (Fig. 1C). Axial T1-and T2-weighted MR images showed a hypointense lesion located in the posterolateral region of the C5 vertebral body to the right of the midline. The lesion was not enhanced on contrast-enhanced T1-weighted images (Fig. 1D). CT revealed a round, well-circumscribed lesion, 6 mm in diameter and with gas attenuation, in the C5 vertebral body (Fig. 1E). The CT attenuation at the epicenter of the lesion was -890 H, suggesting a collection of gas. No evidence was seen on CT or MR images of communication of the lesion with the disk space or the spinal canal. 99m Tc scintigraphy revealed increased isotope uptake in C5 and C6, which is concordant with degenerative disk disease. The imaging findings excluded metastatic bone disease of the cervical spine, and an intraosseous pneumatocyst was diagnosed.The patient was treated for the degenerative disk disease with antiinflammatory agents, which alleviated the symptoms. Radiographs obtained 10 weeks after the initial presentation revealed complete disappearance of the pneumatocyst in C5. Follow-up CT scans obtained 14 weeks after the initial presentation revealed a cystic structure in the C5 vertebral body (Fig. 1F). The ...

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“…Intravertebral gas is uncommon, and is associated with various pathologic conditions, such as osteomyelitis, osteonecrosis, surgery, and trauma (2, 6, 9). A rare and unusual cause of intravertebral gas is the intraosseous pneumatocyst; only a few cases have been reported (6, 10–12). All of them were incidentally detected and there is only one report about the existence of this rare lesion during a 1‐year period (12).…”

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confidence: 99%