ABSTRACT
Primary intraosseous cavernous hemangiomas (PICHs) of the skull base are extremely
rare tumors. These lesions are most common in the frontal and parietal bones of the
calvarium. The authors describe a 40-year-old female who presented with progressive
headaches. Serial imaging revealed a contrast-enhancing intraosseous lesion of the
lateral body of the sphenoid bone and the greater wing associated with encroachment
of the inferior cavernous sinus and mild posterior displacement of the cavernous carotid
artery. Follow-up imaging 9 years later revealed slow growth of the lesion. The patient
underwent complete excision of the PICH through an extradural frontopolar approach.
Pathological examination revealed an intraosseous cavernous hemangioma. PICHs of the
skull base can mimic other more common skull base lesions and thus can be difficult
to diagnose preoperatively. Diagnosis is usually made at surgery. The authors review
the literature regarding the clinical presentation, radiological characteristics,
pathological features, and surgical management of PICHs.
KEYWORDS
Cavernous hemangioma - skull base - intraosseous tumor