GADOLINIUM ENHANCEMENT OF THE CISTERNAL PORTION OF THE OCULOMOTOR NERVE: CLINICAL AND PATHOLOGICAL SIGNIFICANCE (MEETING ABSTRACT)

Important note: Information in this article was accurate in 1992. The state of the art may have changed since the publication date.

GADOLINIUM ENHANCEMENT OF THE CISTERNAL PORTION OF THE OCULOMOTOR NERVE: CLINICAL AND PATHOLOGICAL SIGNIFICANCE (MEETING ABSTRACT)

Neuroradiology; 33(Suppl):S151 1991. Unique Identifier : AIDSLINE ICDB/92686342
Marx AS; Blake P; Ross M; Atlas S; Brown D; Washington Hosp. Center, Washington, DC

Abstract: Gadolinium enhancement of the 2nd, 5th and 7th cranial nerves on MRI has recently been described in patients (pts) with respective cranial neuropathies. We report 10 pts with enhancement of the cisternal portion of the 3rd nerve. 50 control pts referred for pituitary microadenomas were also studied with coronal pre- and post-gadolinium T1-weighted images. None of the 50 controls demonstrated enhancement of the 5th nerve. The pts underlying diagnoses were viral meningitis (1 pt), leukemia (1 pt), lymphoma (3 pts), neurofibromatosis (2 pts), Tolosa-Hunt (1 pt), migraine (1 pt) and inflammatory polyneuropathy in an HIV-positive pt (1 pt). One other pt with lymphoma was HIV-positive. Enhancement was bilateral in 5 pts. Six pts had 3rd-nerve palsies, but 4 pts were asymptomatic, 2 of them with neurofibromatosis. Enhancement of the cisternal segment of the 3rd nerve is always abnormal, reflecting an underlying inflammatory or neoplastic process. This finding may not be associated with a 3rd-nerve palsy.

Keywords: Cranial Nerve Diseases/*DIAGNOSIS Facial Nerve/PATHOLOGY Gadolinium/*DIAGNOSTIC USE Human HIV Infections/DIAGNOSIS Image Enhancement Leukemia/DIAGNOSIS Lymphoma/DIAGNOSIS *Magnetic Resonance Imaging Meningitis, Viral/DIAGNOSIS Oculomotor Nerve/*PATHOLOGY Ophthalmoplegia/DIAGNOSIS Peripheral Nervous System Diseases/DIAGNOSIS Pituitary Neoplasms/*DIAGNOSIS ABSTRACT
921230
M92C5379

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