Dermal cylindroma
Medical condition
From Wikipedia, the free encyclopedia
In dermatologic pathology, a dermal cylindroma, also dermal eccrine cylindroma or cutaneous cylindroma[1]: 666 ) and (less specifically) cylindroma, is a benign adnexal tumor[2] that occurs on the scalp and forehead.
| Dermal cylindroma | |
|---|---|
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| Dermal cylindroma treated with X-rays without recurrence |
Multiple cylindromas may grow together in a "hat-like" configuration, sometimes referred to as a turban tumor.[3] Cylindromas are uncommon dysplasias of skin appendages.[4]
Histology
Dermal cylindromas are:
- Dermal lesions consisting of nests of cells that are surrounded by hyaline (i.e., glassy, eosinophilic, acellular) material and have:
- Hyperchromatic nuclei that may palisade (columnar nuclei arranged around the periphery of the cell nests with their short axis tangential to the nest periphery), and
- Cells with lighter staining ovoid nuclei at their centre.
They lack of a significant number of lymphocytes; this differentiates them from spiradenomas.
