Fluid-fluid levels in intracranial schwannomas.
Intracranial cystic neurogenic tumours constitute an uncommon subset of tumours with a distinct clinico-biological behaviour. The presence of fluid-fluid levels within the tumours, although rare, confirms the cystic nature of the neoplasms. Barring the acoustic schwannomas, cystic cranial nerve schwannomas are exceptionally uncommon. Imaging findings of fluid-fluid levels in two non-acoustic cranial nerve schwannomas are described; one was a cystic trigeminal schwannoma and the other was a glossopharyngeal nerve schwannoma. The causes of the fluid-fluid level and its implications are analysed.
Prasad
S
S
Department of Radiology, King Edward Memorial Hospital, Parel, Bombay, India. kemrad@bom2.vsnl.net.in
Gupta
S
S
Patankar
T
T
Goel
A
A
D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis*; D005260:Female; D020435:Glossopharyngeal Nerve Diseases / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis*; D020433:Trigeminal Nerve Diseases / Q000175:diagnosis*