Eccrine poroma
Poromas are rare, , adnexal . Cutaneous adnexal tumors are a group of skin tumors consisting of that have differentiated towards one or more of the four primary adnexal structures found in normal skin: hair follicles, sebaceous sweat , apocrine sweat glands, and eccrine sweat glands. Poromas are eccrine or apocrine sweat gland tumors derived from the cells in the terminal portion of these glands' ducts. This part of the sweat gland duct is termed the acrosyringium and had led to grouping poromas in the acrospiroma class of skin tumors. Here, poromas are regarded as distinct sweat gland tumors that differ from other sweat gland tumors by their characteristic presentations, microscopic histopathology, and the that their neoplastic cells have recently been found to carry.
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