1 引言恶性黑色素瘤(简称恶黑)是一种高度恶性肿瘤。大多数病例位于皮肤,少数位于皮肤以外的粘膜、眼球色素膜、软脑膜等处,但发生于外阴少见。由于恶黑发病隐匿,早期发现困难,当黑色素含量少时,极易误诊。鉴于此,本文报道我院由1985年7 1 Introduction Malignant melanoma (abbreviated as black) is a highly malignant tumor. Most cases are located in the skin, a few are located outside the skin of the mucous membrane, eye pigment membrane, pia mater, etc., but occur rarely in the vulva. Due to the concealment of black hair disease, early detection is difficult. When the melanin content is low, it is easily misdiagnosed. In view of this, this article reports on our institute from 1985 7