Primary intracranial melanoma--case report.
We present a rare case of primary intracranial melanoma in the right occipital region of a 76-year-old male. Magnetic resonance imaging showed an isointensity mass with shorter T1 and T2 relaxation times than those of the opposite hemisphere. A well-defined, dark black tumor was totally removed and histologically diagnosed as malignant melanoma. Eight months postoperatively, however, the tumor recurred and was excised again. He was doing well 1 year after the second operation without additional treatment. In our case, 1) no systemic melanomas were found in close clinical examinations; 2) there was a single nodular tumor attached to the leptomeninges; and 3) a favorable outcome was obtained by surgical treatment alone. These results are consistent with the diagnosis of primary intracranial melanoma.
Iizuka
H
H
Department of Neurosurgery, Kanazawa Medical University, Ishikawa.
Nakamura
T
T
Kurauchi
M
M
D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed