Pigmented cysts. Pigmented epidermal cysts and pigmented trichilemmal cyst
Plewig, G.
Der Hautarzt; Zeitschrift für Dermatologie Venerologie und verwandte Gebiete 27(7): 340-343
1976
ISSN/ISBN: 0017-8470 PMID: 955895 Document Number: 105345
The clinical and histopathological picture of the pigmented epidermal cyst and the pigmented trichilemmcyst is illustrated by three case-reports. The pigment is melanin, which is located in the epithelium of the cyst-wall, the corneocytes of the lumen and in macrophages in the dermis. The clinical appearance of melanin pigmented cysts is blue due to the Tyndall-phenomenon.