Differential diagnosis Many other conditions can lead to localized scaling or hyperpigmentation. This condition should firmly be distinguished from dermatitis artefacta, which is the factitious creation of a skin lesion, whereas<unk>  results from unconscious avoidance of cleaning due to pain or immobility. Other skin conditions which should not be mistaken for<unk>  include: terra firma-forme<unk>  (in which there is no history of inadequate cleaning); confluent and reticulated papillomatosis of Gougerot and Carteaud; several forms of ichthyosis; acanthosis nigricans; and Vagabond's disease.
Dermatosis neglecta
Keratosis pilaris
Keratosis pilaris atrophicans
Epidermodysplasia verruciformis
Erythrokeratodermia variabilis
Dermatosis papulosa nigra
Adenoma sebaceum
Acrokeratosis verruciformis