Rapid expansion of a previously asymptomatic subependymoma. Case report.
This 39-year-old man presented with a 6-month history of occipital headaches. Magnetic resonance imaging revealed an irregularly shaped fourth ventricle mass. One month after his initial presentation, he was admitted to the hospital with significant tumor expansion and clinical deterioration. A posterior fossa craniectomy was performed and the mass was resected. Histopathological analysis of this tumor showed central necrosis with associated edema in an otherwise typical and benign-appearing subependymoma. To the authors' knowledge, this is the first reported case of rapid, nonhemorrhagic expansion associated with necrosis in a previously asymptomatic subependymoma.
Laxton
Adrian W
AW
Division of Neurosurgery, Toronto Western Hospital, University Health Network, University of Toronto, Ontario, Canada.
Shannon
Patrick
P
Nag
Sukriti
S
Farb
Richard I
RI
Bernstein
Mark
M
D000328:Adult; D001929:Brain Edema / Q000209:etiology; D002551:Cerebral Ventricle Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003388:Cranial Fossa, Posterior; D003399:Craniotomy; D018450:Disease Progression; D018315:Glioma, Subependymal / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006261:Headache / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009336:Necrosis; D013997:Time Factors