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争议有点大,犹豫中……本例有乳头结构,病变与表皮相关,是表皮的病变突向真皮,未在真皮内,也许大家的意见更准确,现在更倾向翻转性毛囊角化病。
内翻性(或翻转性、反转性)毛囊角化病有专著指出四种结构:
four growth patterns:
1. a papillomatous wart-like variant, which is largely exophytic with
overlying hyperkeratosis and parakeratosis
2. a keratoacanthoma-like pattern with marginal buttress formation
and a central exo-endophytic mass of solid epithelium
3. a solid nodular form, which is largely endophytic with solid,
lobulated masses of epithelium
4. an uncommon cystic type, with irregular clefts within the tumor
and the formation of small cysts.
贴几张图 :
zhangjz0418 离线