open access

Vol 76, No 2 (2017)
CASE REPORTS
Published online: 2016-10-10
Submitted: 2016-07-19
Accepted: 2016-08-21
Get Citation

Ectopic arachnoid granulation involving a rare intracranial venous sinus variant

R. Umeh, M. Loukas, R. J. Oskouian, R. S. Tubbs
DOI: 10.5603/FM.a2016.0062
·
Pubmed: 27813633
·
Folia Morphol 2017;76(2):319-321.

open access

Vol 76, No 2 (2017)
CASE REPORTS
Published online: 2016-10-10
Submitted: 2016-07-19
Accepted: 2016-08-21

Abstract

Arachnoid granulations are hypertrophied arachnoid villi, which extend from the subarachnoid space into the venous system and aid in the passive filtration and reabsorption of cerebrospinal fluid. These macroscopic structures have been described in various locations, with the transverse and sigmoid sinuses seen as normal variants on imaging. Here we present the occurrence of an enlarged arachnoid granulation at the foramen rotundum where a variant intracranial venous sinus was identified during routine dissection. Variations, such as the one described herein, should be recognised by those who operate or interpret images of the skull base.

Abstract

Arachnoid granulations are hypertrophied arachnoid villi, which extend from the subarachnoid space into the venous system and aid in the passive filtration and reabsorption of cerebrospinal fluid. These macroscopic structures have been described in various locations, with the transverse and sigmoid sinuses seen as normal variants on imaging. Here we present the occurrence of an enlarged arachnoid granulation at the foramen rotundum where a variant intracranial venous sinus was identified during routine dissection. Variations, such as the one described herein, should be recognised by those who operate or interpret images of the skull base.

Get Citation

Keywords

arachnoid granulations, intracranial venous sinus, foramen rotundum

About this article
Title

Ectopic arachnoid granulation involving a rare intracranial venous sinus variant

Journal

Folia Morphologica

Issue

Vol 76, No 2 (2017)

Pages

319-321

Published online

2016-10-10

DOI

10.5603/FM.a2016.0062

Pubmed

27813633

Bibliographic record

Folia Morphol 2017;76(2):319-321.

Keywords

arachnoid granulations
intracranial venous sinus
foramen rotundum

Authors

R. Umeh
M. Loukas
R. J. Oskouian
R. S. Tubbs

References (9)
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