(资料图)

图2.A-D，MCC组分显示CK20 (A，·20)，SyN (B，·20) 和MCPyV (C，·20) 的阳性染色，具有高Ki-67增殖率 (D，·10)。

Merkel Cell Carcinoma In Situ Arising in Association With an Infundibular Cyst With Unusual Reticulated Infundibulocystic Proliferation.Isairis Peralta et al. Am J Dermatopathol. 2023.