F. Servadei et al., ARACHNOID CYST OF MIDDLE CRANIAL FOSSA AND IPSILATERAL SUBDURAL-HEMATOMA - DIAGNOSTIC AND THERAPEUTIC IMPLICATIONS IN 3 CASES, British journal of neurosurgery, 7(3), 1993, pp. 249-254
We describe three cases of arachnoid cyst of the middle cranial fossa
with associated intracystic and subdural haematomas. In all of the pat
ients the diagnosis was made before surgical treatment. No bleeding co
uld be attributed to ruptured bridging veins. In two cases the source
of bleeding was identified at the interface between the dura mater and
the outer membrane at the temporal skull base. We suggest that, even
if wide outer membrane membranectomy is probably not indicated, carefu
l coagulation of the membrane at the skull base is necessary to avoid
bleeding within the cyst.