Dermal cylindroma
In dermatologic pathology, a dermal cylindroma, also dermal eccrine cylindroma or cutaneous cylindroma) and cylindroma, is a benign adnexal tumor that occurs on the scalp and forehead.
Multiple cylindromas may grow together in a "hat-like" configuration, sometimes referred to as a turban tumor. Cylindromas are uncommon dysplasias of skin appendages.
Histology
Dermal cylindromas are:- Dermal lesions consisting of nests of cells that are surrounded by hyaline material and have:
- *Hyperchromatic nuclei that may palisade, and
- *Cells with lighter staining ovoid nuclei at their centre.