Clinical cases
RIEHL MELANOSIS TRIGGERED BY CLEANING AGENTS
Hypermelanases are defined as hyperpigmentative skin
disorders resulting from quantitative abnormalities
(melanin excess) or qualitative melanin pigments.
Hypermelanosis can be determined by genetic and
acquired factors. Some melanosis occur by increasing
melanogenesis under the influence of genetic factors. Other
melanosis occur by increasing the number of melanocytes
(Mongoloida patch, Ota nevita, Ito nevul). Other
melanomas occur under the influence of hormonal factors,
UV, chemical compounds and cosmetics. Riehl’s melanosis
(cosmetic pigmentary dermatitis or facial melanoma of
women) is a skin disorder that is manifested by the
appearance of a pigmentation in the cephalic extremity
encountered especially in women and in the appearance of
which cosmetics, detergents and sunlight appear to play a
role important. We present the case of a 43-year-old patient
presenting in our clinic for a dramatic facial melanoma
with a major negative impact on the emotional state of the
patient. Diagnosis based on clinical examination, history,
challenge tests and histological examination is Riehl’s
melanosis