Shawn Liu S1, Joe Spencer Liles2 and Kurt J Knowles1*
1Department of Pathology, University of South Alabama, USA
2Department of Surgery, University of South Alabama, USA
Collision tumors are two or more distinct neoplasms coexisting at the same anatomical location. The pathogenesis and nomenclature of cutaneous collision tumor is still ambiguous. We reported a case of 0.3 cm cutaneous lesion on the nose of an elderly female patient. Histological examination released a collision tumor of malignant melanoma in situ and basal cell carcinoma, which were adjacent to each other. Immunohistochemistry staining of SOX-10 and MOC31 confirmed the morphological findings. This case is consistent with the current literature that coexistent malignant melanoma and basal cell carcinoma is the most frequent combination of collision tumors.
Shawn Liu S, Liles JS, Knowles KJ. Collision Tumors of Malignant Melanoma in situ and Basal Cell Carcinoma: A Rare Case Report and Review of Literature. Am J Otolaryngol Head Neck Surg. 2022; 5(4): 1184..