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European Journal of Radiology
Volume 70, Issue 1, April 2009, Pages 10-16
Pathologic significance of the "dural tail sign"
Rokni-Yazdi, H.a , Azmoudeh Ardalan, F.b , Asadzandi, Z.c , Sotoudeh, H.c , Shakiba, M.d , Adibi, A.e , Ayatollahi,
H.f , Rahmani, M.c
a Department of Radiology and Imaging, Imam Khomeini Hospital, Medical Sciences/Tehran University, Keshavarz
Boulevard, Tehran, Iran
b Department of Pathology, Imam Khomeini Hospital, Medical Sciences/Tehran University, Iran
c Department of Radiology and Imaging, Imam Khomeini Hospital, Medical Sciences/Tehran University, Iran
d Research Unit, Medical Imaging Center, Imam Khomeini Hospital, Iran
e Medical Sciences/Tehran University, Iran
f Department of Biochemistry and Nutrition, Mashhad University of Medical Sciences (MUMS), Iran
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Abstract
Objective: The exact nature of the "dural tail sign" (thickening of the dura adjacent to the tumour in contrast enhanced
T1-MRI imaging) is still not clearly established. In this study we tried to verify the histological appearance of the "dural
tail sign" and probable correlation between different MRI findings and dural tail histology. Material and methods: In
this study, 129 patients with intracranial lesions underwent MRI imaging with 1.5 T scanner. The "dural tail sign" was
defined using Goldsher et al. criteria. Size and pattern of enhancement of the tumour and adjacent dura was noted in
MRI and in the pathologic samples, dural tail and the dura beneath the tumour was assessed. Results: In 30 cases,
"dural tail sign" was evident on MRI, dural tail noted in 17 of these cases in histological samples (12 meningiomas, 3
pituitary adenomas and 2 schwannomas). All of them had vessel dilatation, 6 showed tumoural invasion, 4
demonstrated intravascular growth of the lesion and 1 showed inflammation of the dura. Conclusion: In our study MRI
findings failed to predict tumoural invasion of the dural tail in histologic samples and because of frequent presence of
tumour nests in it, the dura matter should be resected as widely as possible. © 2008 Elsevier Ireland Ltd. All rights
reserved.
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Author keywords
Dura matter; Histopathology; Magnetic resonance imaging
Indexed Keywords
Contrast-enhanced; Dura matter; Histopathology; Intravascular; Meningiomas; Pituitary adenomas
Engineering controlled terms: Magnetic resonance; Magnetic resonance imaging
Engineering main heading: Tumors
EMTREE medical terms: adult; article; brain damage; cancer invasion; computed tomography scanner; contrast
enhancement; dura mater; female; histology; human; human tissue; hypophysis adenoma; inflammation; major
clinical study; male; meningioma; neurilemoma; nuclear magnetic resonance imaging; priority journal
MeSH: Adult; Brain; Dura Mater; Female; Humans; Magnetic Resonance Imaging; Male; Reproducibility of Results;
Sensitivity and Specificity
Medline is the source for the MeSH terms of this document.
ISSN: 0720048X CODEN: EJRADSource Type: Journal Original language: English
DOI: 10.1016/j.ejrad.2008.01.010 PubMed ID: 18294796Document Type: Article