This paper constitutes an evaluation of 23 patients with signs and symptoms of 4 types of
tumors: 6 congenital epidermoids, 3 cases of meningiomas presenting within the temporal …

The membranous labyrinth and 7th and 8th cranial nerves are well shown by magnetic
resonance scanning but the lack of bone detail makes MRI secondary to CT for the …

Glomus tumors can be classified as to their origin in the temporal bone. Those limited to the
middle ear and mastoid are referred to as tympanicum tumors while those originating in the …

Computed tomography (CT) and magnetic resonance (MR) imaging are used routinely to
stage skull base neoplasms preoperatively, define the extent of the tumor, identify perineural …

Objective Cholesteatoma of the petrous bone extending into the intracranial region is an
unusual occurrence. Most cases have been attributed to secondary extension of a primary …

Five patients with primary tumors of the petrous apex were diagnosed and treated between
the years 1968 to 1974; two had congenital epidermoids, two had chondromyxosarcomas …

Meningiomas should be considered in the differential diagnosis of otologic tumors arising
from the middle ear and mastoid. It is generally recognized that meningiomas may invade …

CT and MRI scanning provide valuable information in determining location and extension of
middle ear and mastoid tumors and tumor-like conditions. The bone anatomy depicted by …

Cerebellopontine angle (CPA) meningiomas constitute about 1% of intracranial
meningiomas. The clinical aspects of a series of 32 patients with surgically confirmed CPA …

• A 20-year follow-up was done on a patient with a large congenital cholesteatoma of the
petrous apex. The patient was treated successfully with marsupialization through a radical …