2F20.2
先天性黑素细胞痣
Congenital melanocytic naevus
- 上级条目
- 2F20 皮肤良性黑素细胞瘤
- 层级
- 6 级
定义
先天性黑素细胞痣是出生时出现的皮肤色素沉着的环形区域,由于宫内黑色素细胞在真皮、表皮或两者内异常增殖的结果。它们的大小从几毫米到几厘米直径不等。如果它们的预测或最终的成人最大直径大于20厘米,则被称为巨大先天性黑素细胞痣。
Congenital melanocytic naevi are circumscribed areas of skin pigmentation present at birth as a result of abnormal intrauterine proliferation of melanocytes within the dermis, the epidermis or both. They may range in size from a few millimetres to many centimetres in diameter. If their projected or final adult maximal diameter is greater than 20 cm they are termed giant congenital melanocytic naevi.
子条目 共 3 条
后组配轴 Postcoordination
后组配是在主干编码之后追加的可选扩展轴(如侧别、具体解剖部位、严重程度),用于把「部位 + 侧别 + 病程」等细节一次表达完整。只有标注「必填」的轴在组合编码时必须给出,其余可留空。
- 具体解剖部位specificAnatomy可选
- 组织病理histopathology可选