Hidradenoma is presented as a benign small, firm and solitary nodule. Cytological study reveals a lesion mainly composed by two types of cells. The majority of the cases show a greater amount of a polyhedral and slightly basophilic cell type. Here we present a case with a predominance of a larger, rounded-shaped pale to clear cell type, which is characteristic of clear cell hidradenoma. Our cas...

Figure 1. Intraoperative view of left foot showing the tumor on the third toe (top left). Low-powered view of mass showing well-circumscribed tumor and pseudoencapsulation (top right). Medium-powered view of mass showing bland morphology of cells and mucinous features (bottom left). High-powered view of mass showing bland morphology and mucinous features (bottom right). DESCRIPTION A 26-year-ol...

Syringocystadenoma papilliferum (SCAP) and tubular apocrine adenoma (TAA) are rare benign sweat gland tumors. SCAP and TAA may have a histopathologic overlap, but few cases of a SCAP combined with a TAA have been reported. Herein we describe an unusual case of a SCAP co-existing with a TAA located on the back of a 12-year-old girl.