the authors briefly recall other pathological circumstances which result in cutaneous hyperpigmentation : cutaneous porphyria ( hyperpigmentation of the exposed parts ) , malignant melanoma , recklinghausen 's neurofibromatosis ( cafe-au-lait spots and naevo-cellular naevi ) , pigmented dermatoses ( lichen planus ) , fixed pigmented toxidermias , drug induced hyperpigmentations ( minocyne , synthetic anti-malarials which can provoke the development of large areas of greyish coloured s in ) , reticular `` '' hot water bottle '' '' dermatitis and malingering syndromes .
C0025202
malignant melanoma
C0037274
dermatoses