Cutaneous horn - 皮角https://en.wikipedia.org/wiki/Cutaneous_horn
皮角 (Cutaneous horn) 是一種不尋常的角質腫瘤,外觀呈角狀,有時類似木頭或珊瑚。它通常體積較小且局限,但在極少數情況下可長得較大。可為惡性或癌前病變。

約有 20% 病例伴隨惡性腫瘤,其中鱗狀細胞癌最為常見。若病灶位於陰莖,鱗狀細胞癌的發生率高達 37%。

診斷與治療
#Skin biopsy
☆ 德國 Stiftung Warentest 2022 年的結果顯示,消費者對 ModelDerm 的滿意度僅略低於付費遠距醫療諮詢。
  • 由於皮膚癌(例如鱗狀細胞癌)經常存在,因此需要進行活檢。
  • 典型尺寸和位置(耳朵)。
References Cutaneous Horn 33085427 
NIH
Cutaneous horn 基本上是一種可見的生長物,外觀類似白色或黃色的動物角。現在普遍認為,這些角的出現是對不同皮膚問題的反應——有些是良性的,亦有可能發展成癌症。Actinic keratoses 是最常見的良性原因,而 squamous cell carcinoma (SCC) 則是最常見的惡性原因。
A cutaneous horn is usually evident upon physical examination and can be described as a white or yellow exophytic protrusion in the shape of an animal horn. Cutaneous horns are now widely accepted as a reactive cutaneous growth caused by a variety of benign, premalignant, or malignant primary processes. Actinic keratoses are the most common premalignant primary cause of cutaneous horn, while squamous cell carcinoma (SCC) is the most common malignant cause.
 Cutaneous horn: a potentially malignant entity 20043059
Cutaneous horn 是一種緻密的圓錐形生長物,皮膚增厚,通常類似於動物的角。這個術語描述的是硬化皮膚細胞的異常堆積,而不是特定的疾病。Cutaneous horns 可能與各種良性、癌前或惡性皮膚病變同時出現。關鍵在於分辨增厚的曬傷斑與可能的癌性生長(如鱗狀細胞癌)。另一個常見原因是角化棘皮瘤,它呈現為凸起的指甲狀腫瘤。治療通常包括切除角狀突起,並於顯微鏡下檢查組織以確定是否有癌症。
Cutaneous horn is a dense, cone-shaped growth with thickened skin, often resembling an animal's horn. It's a term describing an unusual buildup of hardened skin cells, rather than a specific disease. Cutaneous horns can develop alongside various benign, pre-cancerous, or cancerous skin conditions. A key concern is distinguishing between a thickened sun-damaged skin spot and a potentially cancerous growth like squamous cell carcinoma. Another culprit is keratoacanthoma, which presents as a raised, nail-like tumor. Treatment typically involves removing the horn and examining it under a microscope to check for cancer.