Dural Tail Adjacent to Acoustic Neuroma

Kutcher, Theodore J.; Brown, Douglas; Maurer, Paul K.; Ghaed, Victor N.

doi:10.1097/00004728-199107000-00024

Cited by 35 publications

(12 citation statements)

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“…Schwannomas in all groups had no such syndrome. In addition, one case of neurofibroma in the group showed a dural tail sign that was previously reported, [11,12] and implies that this sign was not the peculiar MRI feature of meningioma.…”

Section: Discussionsupporting

confidence: 70%

MRI diagnosis of intradural extramedullary tumors

Liu

Zhang

et al. 2014

J Can Res Ther

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Section: Discussionsupporting

confidence: 70%

MRI diagnosis of intradural extramedullary tumors

Liu

Zhang

et al. 2014

J Can Res Ther

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“…The lesion corresponds to a pituitary macro-adenoma. ment can diff erentiate this tumour from a meningioma (6,10,11,35). In our study 7 tumours were located in the CPA (5 acoustic neuromas and 2 meningiomas).…”

Section: Figurementioning

confidence: 57%

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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“…Mean- site of origin of acoustic schwannoma before surgery. However, the interpretation of the MR images used in our study was limited by the difficulty of distinguishing the intrameatal cranial nerve enhancement from the intrameatal meningeal enhancement (10)(11)(12)(13). At the time of this study, the imaging could be performed only with 3 mm contiguous images.…”

Section: Discussionmentioning

confidence: 99%

Contrast-enhanced Magnetic Resonance Imaging of the Cranial Nerves in Patients with Acoustic Schwannoma: Correlation with Surgical Findings

Okubo

Yoshioka²,

Hayashi³

et al. 2000

Acta Oto-Laryngologica

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Contrast-enhanced magnetic resonance imaging of the cranial ner6es in patients with acoustic schwannoma: Correlation with surgical findings. Acta Otolaryngol 2000; Suppl 542: 13 -17.Eighteen patients with acoustic schwannoma were examined on a 1.5-T magnetic resonance imaging (MRI) unit with precontrast and postcontrast T 1 -weighted spin-echo sequences. Each abnormality was assessed in terms of the size, location, extensions and signal intensity of the lesions. If a nerve was enhanced and was involved by the tumor around the fundus of the internal auditory canal (IAC), the nerve was interpreted to be the originating nerve. The postcontrast T 1 -weighted images revealed enhanced masses of the cerebellopontine angle and/or the IAC in all cases. In 11 of the 19 operated patients with shwannomas, the site of tumor origin (or origin nerve) was confirmed by surgery. In 2 of the 11 cases (18%), surgical findings coincided with the T 1 -weighted image findings. Facial nerve enhancement on the ipsilateral side of the tumor was noted in 10 cases (53%) and the contralateral facial nerve enhancement was demonstrated in 7 (70%). The enhancement of facial nerve associated with acoustic schwannoma was not correlated to the degree of nerve compression by the tumor. These results demonstrate that it was possible, although infrequent, to predict the site of origin of acoustic schwannoma before surgery in some patients. Improvement of the imaging matrix or multiplanar reconstruction techniques with three-dimensional data acquisition may make it possible to overcome the limitations of MRI.

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Dural Tail Adjacent to Acoustic Neuroma

Cited by 35 publications

References 0 publications

MRI diagnosis of intradural extramedullary tumors

MRI diagnosis of intradural extramedullary tumors

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

Contrast-enhanced Magnetic Resonance Imaging of the Cranial Nerves in Patients with Acoustic Schwannoma: Correlation with Surgical Findings

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