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Open Access Highly Accessed Case report

A massive calcification and ossification of the transverse sinus and the neighbouring dura mimicking meningioma

Zhiqin Xu1*, Changbao Su1 and Yu Xiao2

Author Affiliations

1 Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng district, Beijing 100730, P. R. China

2 Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, P. R. China

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BMC Neurology 2013, 13:143  doi:10.1186/1471-2377-13-143

Published: 11 October 2013

Abstract

Background

Although small calcifications of the dura and the transverse sinus occur frequently, large, single intracranial calcifications originating from the transverse sinus and the neighbouring dura are rare.

Case presentation

A 47-year-old man was admitted to the hospital for a right occipital headache that had persisted for two weeks. There was no neurological deficit. Normal skull X-ray and computed tomography (CT) scans revealed an irregular, calcified, intracranial lesion of approximately 4.4 × 4.0 × 2.5 cm in volume in the right occipital region. Via surgery, a bone-hard, poorly vascularised, pink mass originating from the right transverse sinus and the convex dura of the right cerebellar hemisphere, as well as the cerebellar tentorium, was completely removed. Pathological examination yielded a diagnosis of fibrous connective tissue with hyaline degeneration, calcification and ossification with no indication of neoplasia or inflammation.

Conclusions

We report a rare case of massive calcification and ossification of the transverse sinus and the neighbouring dura mimicking meningioma. Degenerative calcification and ossification may serve as a rare differential diagnosis of diseases, such as meningiomas, in the transverse sinus and the neighbouring dura.

Keywords:
Intracranial calcification; Intracranial ossification; Transverse sinus; Dura