Cerebellopontine angle ganglioglioma: MR findings.

Ganglioglioma in Brainstem : Case Report and a Review of Literatures

Ganglioglioma is an infrequent tumor of the central nervous system (CNS); mostly supratentorial region. But, they can occur anywhere in the central nervous system such as brainstem, cerebellopontine angle (CPA), thalamus, optic nerve and spinal cord. Although it occurs rarely, ganglioglioma should be included in the differential diagnosis of a posterior fossa mass because early recognition is i...

Neurenteric cyst in the cerebellopontine angle with xanthogranulomatous changes: serial MR findings with pathologic correlation.

We report serial MR findings in a middle-aged woman with a neurenteric cyst involving the cerebellopontine angle cistern with xanthogranulomatous changes. On the initial gadolinium-enhanced T1-weighted MR images, the solid portion of the lesion had homogeneously strong enhancement. Follow-up MR images obtained 6 months later showed that the mass had increased in size; however, the solid portion...

Pictorial review of CT and MR findings of cerebellopontine angle lesions

MR Imaging of a Cerebello-Pontine Angle Epidermoid Cyst with a Malignant Transformation: Case Report

nial tumors and are histologically benign (1). A case of the transformation of an epidermoid cyst into a malignant squamous cell carcinoma has seldom been reported (2-7). The malignant transformation may have occurred from pre-existing epidermoid cysts or after the incomplete excision of an epidermoid cyst (5). The treatment of the malignant transformation of an epidermoid cyst varies from surg...

Detection of acoustic schwannoma: use of constructive interference in the steady state three-dimensional MR.

PURPOSE To compare constructive interference in the steady state (CISS) three-dimensional Fourier transform (3DFT) MR imaging with contrast-enhanced T1-weighted spin-echo MR imaging for accuracy in detecting acoustic schwannoma. METHODS One hundred twenty-five consecutive patients with possible acoustic schwannoma were examined. The accuracy of CISS-3DFT MR imaging in detecting abnormalities ...