Adult medulloblastoma and the “dural-tail” sign: Rare mimic of a posterior petrous meningioma

Furtado, Sunil V.; Venkatesh, Prasanna K.; Dadlani, Ravi; Reddy, Kalyan; Hegde, AS

doi:10.1016/j.clineuro.2009.02.002

Cited by 26 publications

(32 citation statements)

References 14 publications

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“…In our study we noted DTS in 2 (20%) of 10 pituitary adenomas (Figure 11). In the published literature we found DTS adjacent to medulloblastoma in two cases (37,38). In our study we noted DTS in 1 of 4 medulloblastomas (Figure 12).…”

Section: Figuresupporting

confidence: 50%

Dural tail sign adjacent to different intracranial lesions on contrast-enhanced MR images

Bećirević-Ibrišević

2011

JHSCI

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Introduction: The aim of this study is to determine the prevalence of dural tail sign (DTS) in meningiomas, glioblastomas multiforme, metastasis, pituitary macro-adenomas, acoustic neuromas, medulloblastomas, lymphomas and Wegener's granulomatosis, and to reveal if DTS is specifi c for meningiomas. Methods: In this retrospective, cross sectional study 96 patients were included with 95 intracranial and 1 extracranial lesions. The study was conducted in the period from January 2008 to May 2010 and the group pattern was made consecutively. The patients underwent surgery and all 96 lesions were examined by histopathology analysis. DTS was analysed on contrast T1-weighted spin echo images after injection of 0.1 mmol/kg gadolinium contrast medium. The presence of this sign was defi ned using Goldsher et al's criteria. Results: Histopathology results of the 96 lesions revealed the presence of: 35 meningiomas, 25 glioblastomas multiforme, 13 metastasis, 10 pituitary adenomas, 5 acoustic neuromas, 4 medulloblastomas, 3 lymphomas and 1 Wegener's granulomatosis. On the contrast-enhanced T1 MR images, DTS was noted in 31 (32.3%) lesions, in the following histological samples: meningioma, GBM, adenoma, schwannoma, medulloblastoma and Wegener's granulomatosis, while in the cases of metastasis and lymphomas DTS was not noted. We found the dural tail sign to have a sensitivity of 68.6% and specifi city of 88.5% in the diagnosis of meningioma. Conclusion:The dural tail is a common but not a pathognomic sign of meningioma on contrast-enhanced T1 MR images. Other intracranial lesions, such as glioblastoma multiforme, pituitary adenoma, schwannoma, medulloblastoma and Wegener's granulomatosis may also be represented with this sign.

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Section: Figuresupporting

confidence: 50%

Dural tail sign adjacent to different intracranial lesions on contrast-enhanced MR images

Bećirević-Ibrišević

2011

JHSCI

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“…The present study is unique in being from a single institute, describing large number of such cases. Some of the cases in the present series which had interesting clinical, radiological and pathological vignettes like dural tailing, proptosis, pediatric presentation, unusual histomorphology have been indexed as case reports [4][5][6]. Unlike meningiomas which are common in females, we encountered these lesions more in males (15) than in females (5).…”

Section: Discussionmentioning

confidence: 88%

A clinicopathological study of diagnostically challenging meningioma mimics

et al. 2011

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The occurrence of neoplastic and nonneoplastic dural based masses that mimic meningiomas is infrequent and may not be considered during radiological and intraoperative analysis. We describe single institute study of 20 such rare cases. This study included total of 20 cases of meningioma mimics. The clinical, radiological and histopathological findings were evaluated. Tissue fixed in 10% formalin was routinely processed and 5 μ thick sections were cut and stained with hematoxylin & eosin. Histochemistry and immunohistochemistry using avidin-biotin complex immunoperoxidase method was done wherever indicated. In the present study group, 15 were male and 5 female with a male: female ratio of 3:1. The age ranged from 14 to 78 years. Radiologically all these lesions were extra-axial in location, predominantly hypointense on T2W, isointense on T1W images and showed intense homogenous enhancement on contrast administration. Four cases were in pediatric age group with histopathological diagnosis of Rosai Dorfman disease, medulloblastoma, hemangiopericytoma and malignant melanoma. In the adult population, the histopathological diagnoses were hemangiopericytoma, undifferentiated sarcoma, extraskeletal osteosarcoma, Rosai Dorfman disease, medulloblastoma, and metastases from systemic malignancies. Of the total 6 cases of metastases 1 was nonseminomatous germ cell tumor from a primary in testis, 1 was adenocarcinoma from an unknown primary, and 4 were adenocarcinoma from lung. There was a single case of dural based frontal lobe malignant melanoma with congenital hairy nevi on anterior chest wall, scalp, anterior abdominal wall and inguinal region. As the management and biologic behaviour of many of the MM are different, it is essential to familiarize ourselves to them.

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“…6,9 Very infrequently, MBs involving the CPA may present with widening and deep invasion of the IAC, simulating an acoustic neuroma, or with a dural-based appearance, without bony involvement or hyperostosis, simulating a petrosal meningioma. 12,13,17 In our reported case the tumor had heterogenous hyperintensity on T2 WI and heterogenous enhancement on post contrast scan. Intra-axial tumors that may have an exophytic mass projecting into the CPA are astrocytoma and ependymoma.…”

Section: Discussionmentioning

confidence: 46%

Medulloblastoma of the Cerebellopontine Angle in a Child: A Rare Entity

Solanki¹,

Ramrakhiani²

2016

IJMRP

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Cerebellopontine (CP) angle Medulloblastoma is a quite uncommon presentation in clinical practice, especially in children. We report such a case in a 12 years old female patient with clinical history of headache, altered sensorium, vertigo, gait ataxia, left side facial paresis and hearing loss. Preoperative axial MR imaging showed an ill-defined heterogenous lesion in left CP angle region with involvement of left middle cerebellar peduncle, left cerebellar hemisphere and cerebellar vermis. Post contrast scan showed heterogenous enhancement. Intra operative frozen cytology was suggestive of malignant round cell neoplasm.The subsequent histopathology and immunohistochemistry favoured the diagnosis of Medulloblastoma.

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Adult medulloblastoma and the “dural-tail” sign: Rare mimic of a posterior petrous meningioma

Cited by 26 publications

References 14 publications

Dural tail sign adjacent to different intracranial lesions on contrast-enhanced MR images

Dural tail sign adjacent to different intracranial lesions on contrast-enhanced MR images

A clinicopathological study of diagnostically challenging meningioma mimics

Medulloblastoma of the Cerebellopontine Angle in a Child: A Rare Entity

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