Department of Dermatology, Claude Bernard University Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France.
Dermatology. 2012;224(2):140-4. doi: 10.1159/000337411. Epub 2012 Apr 6.
Merkel cell carcinoma (MCC) is an aggressive cutaneous tumor whose clinical presentation, usually a pink nodule, is not specific. We aimed in this study to determine the dermoscopic criteria encountered in MCC.
From our image database we selected the patients diagnosed with MCC and scored the dermoscopic criteria shown by these tumors.
Ten patients coming from three different academic hospitals were studied. Vascular structures were the more relevant dermoscopic features. In 8 out of 10 (80%) patients a polymorphic vascular pattern was seen, composed of milky-red clods/areas in association with one or more additional vascular structures.
Although an overlap existed between the dermoscopic features observed in MCC and amelanotic melanoma, the presence of a polymorphous vascular pattern may constitute an additional clinical clue to accurately diagnose this rare tumor.
默克尔细胞癌（MCC）是一种侵袭性皮肤肿瘤，其临床表现通常为粉红色结节，无特异性。本研究旨在确定 MCC 中遇到的皮肤镜标准。
我们从图像数据库中选择诊断为 MCC 的患者，并对这些肿瘤的皮肤镜标准进行评分。
研究对象为来自三家不同学术医院的 10 名患者。血管结构是最相关的皮肤镜特征。在 10 名患者中的 8 名（80%）中，观察到多态性血管模式，由乳红色的团块/区域与一个或多个附加的血管结构相关联。
尽管 MCC 观察到的皮肤镜特征与无色素性黑色素瘤之间存在重叠，但多态性血管模式的存在可能是准确诊断这种罕见肿瘤的另一个临床线索。
