Hemomelanosis

Hemomelanosis is skin pigmentation caused by the displacement of melanin from melanose-containing cells into the vessels of the dermis. This condition can occur due to hereditary metabolic disorders in skin cells (individual or all), or due to pigment rejection of certain pigmented tumors. Hemomelanin can be found both inside vessels (venous or capillary) and outside, in the intercellular spaces.

Features of manifestations of the hemomelanosis phenotype

Skin manifestations of hemomelanosis are varied: - the skin takes on a “café au lait” color (light brown tint). - hyperpigmentation, especially pronounced on the face, scalp, extensor surfaces of the limbs, on the back, buttocks

-small white papules form at the site of skin injury. - dispigmentary spots on the skin of the abdomen, around the nipples