眼球内悪性黒色腫の1例—診断上の問題点

A case of malignant melanoma of the uvea.:The diagnostic prombles

　右眼霧視を主訴とした55歳男性に硝子体混濁を認め眼底透見不可能の症例に対し動的超音波断層検査を行った。この検査により，耳側毛様体より脈絡膜にかけて存在するsolid massを短時間で検出できた。透光検査³²P, uptake testなどの総合的診断より脈絡膜悪性黒色腫と診断し，眼球摘出を施行した。病理組織学的に眼球外に浸潤のないmixed typeの悪性黒色腫と診断した。

A 55-year-old male developed progressive de-crease in vision in the right eye. The vitreous was turbid with pigment granules suggestive of malignant melanoma of the uvea. We detected a solid mass with vitreous and retinal detachment by means of ultrasonography by static and dynamic studies using equipment developed by us. The results of CT-scan, transillumination and ³²P up-take supported the diagnosis of malignant mela-noma of the ciliary body and iris. The diagnosis of malignant melanoma was confirmed histopathol-ogically.