Umbert-Millet Pablo, Quintana-Codina Monica, Salleras-Redonnet Montse
Department of Dermatology. Hospital Universitari Sagrat Cor, Barcelona, Spain.
An Bras Dermatol. 2017;92(5 Suppl 1):101-103. doi: 10.1590/abd1806-4841.20176324.
Collision or contiguous tumors, defined as two or more distinct tumors occurring at one site, are often an unexpected finding and may represent a diagnostic challenge, as clinical and histological presentations do not always coincide. Various combinations of collision tumors have been described with respect to melanocytic lesions, with the most frequently reported being the combination of nevus and basal cell carcinoma. We present an unusual case on the nose involving a melanoma in situ and a clinically-inapparent syringoma, which, to the best of our knowledge, is the first report of this combination.
碰撞瘤或相邻肿瘤定义为在同一部位出现的两个或更多不同肿瘤，通常是意外发现，可能带来诊断挑战，因为临床和组织学表现并不总是一致。关于黑素细胞性病变，已描述了碰撞瘤的各种组合，最常报道的是痣与基底细胞癌的组合。我们报告一例鼻部的罕见病例，涉及原位黑素瘤和临床上不易察觉的汗腺腺瘤，据我们所知，这是该组合的首例报告。
