雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

A CASE OF CYSTIC METASTATIC INTRACRANIAL AMELANOTIC MELANOMA : ANALYSIS OF FINDINGS IN CT AND MRI Isao Takahashi 1 , Shinji Sugimoto 1 , Mituru Nunomura 1 , Akihiro Takahashi 1 , Toshimitu Aida 1 , Tutomu Katoh 1 , Hiroshi Abe 1 , Hideaki Kojima 2 , Kazuaki Inoue 2 1Department of Neurological Surgery Hokkaido University School of Medicine 2Department of Pathology, Hokkaido University School of Medicine Keyword: CT , MRI , amelallotic malignant melanoma , metastasis pp.1031-1034
Published Date 1990/11/1
DOI https://doi.org/10.11477/mf.1406900118
  • Abstract
  • Look Inside

A case of cystic intracranial metastatic amelano-tic melanoma is presented. As far as we know, cyst formation in intracranial melanoma is rare, and only 15 cases of intracranial amelanotic mela-noma have been reported until now.

A 63-year-old man was admitted with headache and progressive visual disturbance. CT scan reve-aled a large low-density mass with ring-like enha-ncement in the left frontal lobe. Both T 1-and T 2-weighted MRI images revealed hyperintensity.

A left frontotemporal craniotomy was perform-ed. A yellowish mass was observed in the frontal lobe. The content of the cyst consisted of old he-matoma, xanthochromic fluid and necrotic tissue, was evacuated and the cyst wall was totally resec-ted. No abnormal pigmentation was noted in the cyst wall and surrounding brain tissue.

The histological examination revealed amelano-tic melanoma. Primary lesion was found on the left thigh later and resected. The patient died of further intracranial metastasis with repeated he-morrhage 5 months after the admission.

Both CT and MRI findings of our case is atypical as an intracranial malignant melanoma. However, these are compatible with those of intracerebral hemorrhage in subacute stage. It is suggested that melanoma may make the diagnosis difficult when tumor hemorrhage modifies the images of CT or MRI.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

関連文献

もっと見る

文献を共有