Vestibular schwannoma with repeated intratumoral hemorrhage.
Repeated hemorrhage from a vestibular schwannoma is very rare. We report a 15-year-old male, to our knowledge the fourth known patient with repeated hemorrhage of vestibular schwannoma, who presented with rapidly progressive right-sided hearing loss and tinnitus. MRI showed a mass lesion in the right cerebellopontine angle. T1-weighted and T2-weighted MRI revealed a hyperintense intratumoral area, indicating subacute hemorrhage within the tumor. Nine weeks after the initial onset, the patient again presented with a sudden onset headache, nausea, and ataxia. A CT scan showed recurrence of an intratumoral hemorrhage. A subtotal resection was achieved. A histopathological examination of the resected specimen showed typical features of schwannoma. We review the pertinent literature and discuss the features of repeated hemorrhage from a vestibular schwannoma.
Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan. s.takeuchi@room.ocn.ne.jp
Satoru
S
Takeuchi
Hiroshi
H
Nawashiro
Naoki
N
Otani
Fumihiro
F
Sakakibara
Kimihiro
K
Nagatani
Kojiro
K
Wada
Hideo
H
Osada
Katsuji
K
Shima
D000293:Adolescent; D002530:Cerebellopontine Angle / Q000473:pathology; D002543:Cerebral Hemorrhage / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D003390:Cranial Nerve Neoplasms / Q000150:complications* / Q000532:radiotherapy / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D009464:Neuroma, Acoustic / Q000150:complications* / Q000532:radiotherapy / Q000601:surgery; D019635:Neurosurgical Procedures; D012008:Recurrence; D014012:Tinnitus / Q000209:etiology; D014057:Tomography, X-Ray Computed