In all cases of suspected<unk> , a skin biopsy should be performed, because the clinical symptoms are non specific, but the histopathological findings on the biopsy are specific. The biopsy shows characteristic changes of the<unk>  glands, the major sweat glands of the body. In<unk> ,<unk>  gland necrosis, and neutrophils surroundings the<unk>  glands, are typical findings on biopsy. If the chemotherapy has recently been administered, chemotherapy induced neutropenia may be present, and, as a result, the neutrophils may be absent. But the other characteristic finding, i.e.<unk>  gland necrosis, can still be seen. A vacuolar interface dermatitis also is visible in glands and ducts, along with necrosis of the lining cells. In addition, in patients receiving chemotherapy, keratinocyte atypia can be seen.
Neutrophilic eccrine hidradenitis
Diabetic dermadrome
Acroangiodermatitis
Contact granuloma
Phytophotodermatitis
Ichthyosis bullosa of Siemens
Dermal cylindroma
Granulomatous facial dermatitis