Nonfilling of the normal internal auditory canal on computed tomographic (CT) gas cisternography was observed in seven (11%) of 62 cases in a retrospective study of three series of gas cisternograms. The meatal surface of the fluid-filled canal was convex and pointed, simulating a small acoustic neuroma. A meniscus effect at the gas-cerebrospinal fluid interface was considered the probable caus...

Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usually the result of an iatrogenic injury during removal. The retrosigmoid approach is commonly associated with leaks that occur through the lateral end of the internal auditory canal, through the perilabyrinthine cells extending to the region of the internal auditory canal, or through the retrosigmoid ...

cavernous hemangioma is a rare benign tumor of the internal auditory canal (iac) of which fourteen cases have been reported so far. tinnitus and progressive sensorineural hearing loss (snhl) are the chief complaints of the patients. audiological and radiological planes, ctscan, and magnetic resonance image (mri) studies are helpful in diagnosis. the only choice of treatment is surgery with elec...

OBJECTIVES Assess p63 and p73 expression in acoustic neuroma and its correlation with clinical and radiological findings. MATERIALS AND METHODS medical records of 34 patients who were operated on for acoustic neuroma during a 3-year period (2001-2003) were evaluated retrospectively. Immunohistochemical analysis of the schwannoma was performed with p63 and p73 antibodies and clinical patient c...

There are 3 approaches for the surgical treatment of acoustic neuroma namely: 1) translabyrinthine approach 2) retrosigmoid approach, and 3) middle fossa approach. The middle fossa approach was used for the removal of small or intracanalicular tumors, with or without serviceable hearing. The first case presented with severe right sensorineural hearing loss and facial palsy; the second with prog...

Three cases of abnormal bleeding during suboccipital excision of large acoustic neuroma are reported. The possible role of limited operative intravascular coagulation is discussed.