Cavernous haemangioma of the internal auditory canal.
Cavernous haemangioma is a rare neoplasm that can be easily misdiagnosed as acoustic neuroma when it occurs in the internal auditory canal (IAC) or cerebello-pontine angle. A right cavernous haemangioma is reported in a 61-year-old male. The lesion was associated with non-pulsative tinnitus, deteriorating hearing loss and facial nerve dysfunction (House and Brackmann grade IV). A T1-weighted Gd-diethylenetriaminepentaacetic acid-enhanced MRI scan demonstrated a small hyperintense lesion confined to the right IAC. The tumor was completely resected via a retrosigmoidal approach. Histologic examination demonstrated a vascular tumor composed of an irregular, dilated vascular space with collagenous walls lined by a vascular endothelium. Facial nerve function remained unchanged and the patient remained well with no evidence of recurrence 2 years after surgery. We conclude that progressive hearing loss associated with facial nerve dysfunction, particularly when the lesion in the IAC is small, should raise the possibility of cavernous haemangioma.
32874iao@comb.es
Isam
I
Alobid
Felix
F
Gastón
Antonio
A
Morello
Luis Miguel
LM
Menéndez
Pedro
P
Benítez
D002528:Cerebellar Neoplasms / Q000175:diagnosis / Q000601:surgery*; D002530:Cerebellopontine Angle; D006392:Hemangioma, Cavernous / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged