A Wolf in Sheep’s Clothing: Collision of Melanoma and Keratoacanthoma

Dermatopathology

Sandra Falkvoll¹  Matthias Walther¹  Sebastian Leibl² 

[1] Skinmed—Clinic for Dermatology, 5000 Aarau, Switzerland;Skinpath—Histopathology, 5600 Lenzburg, Switzerland;

关键词: melanoma;    squamous cell carcinoma;    collision tumor;    oncology;    dermatopathology;   

DOI  :  10.3390/dermatopathology8030030

来源: DOAJ

【 摘 要 】

Collision tumors consisting of melanoma and squamous cell carcinoma are very rare. We present the case of a deceptive hyperkeratotic nodule on the forearm of a 72-year-old woman, which clinically appeared to be a squamous cell carcinoma, keratoacanthoma type. Histological examination surprisingly revealed a coexisting epithelioid melanoma. Thus, this case report shows the importance of an early histopathological and immunohistochemical workup to prevent unnecessary diagnostic and therapeutic delay with negative effects on prognosis.

【 授权许可】

Unknown