Giant arachnoid granulation mimicking dural sinus thrombosis
Arachnoid granulations are composed of dense collageneous connective that include clusters of arachnoid cells. They tend to invaginated into the dural sinuses through which cerebrospinal fluid enters the venous system. Arachnoid granulations are most commonly seen at the junction between the middle...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KARE Publishing
2017-08-01
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| Series: | İstanbul Kuzey Klinikleri |
| Subjects: | |
| Online Access: | https://jag.journalagent.com/z4/download_fulltext.asp?pdir=nci&un=NCI-93063 |
| Summary: | Arachnoid granulations are composed of dense collageneous connective that include clusters of arachnoid cells. They tend to invaginated into the dural sinuses through which cerebrospinal fluid enters the venous system. Arachnoid granulations are most commonly seen at the junction between the middle and lateral thirds of the transverse sinuses near the entry sites of the superficial veins.
Herein we present twenty one years old female that applied our clinic with recurrent headaches. Magnetic resonance (MR) imaging findings of showed 3.5 cm sized lesion which extended from confluence sinuum through the superior sagittal sinus. The lesion made scallop shaped erosion in the neighboring occipital bone. To exclude sinus thrombosis MR venography was performed and displayed maintained venous flow around the lesion. The headaches were treated symptomatically with medical therapy.
Giant arachnoid granulations can be misdiagnose as dural sinus thrombosis. MR imaging combined with the MR venography, is the most useful diagnostic tool to differentiate the giant AG from the dural sinus thrombosis. |
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| ISSN: | 2148-4902 |