Partial unilateral lentiginous and colon polyp in a young male patient

摘要

Partial unilateral lentiginosis is an unusual pigmentary disorder characterized by numerouslentigines grouped within an area of normal skin. Pigmented macules are usually localized inone half of the body. Associations with café-au-lait spots, cutis marmorata, acanthosis nigricans,nevus depigmentosus, vitiligo, blue nevus, segmental neurofibromatosis, central nervous systemdiseases, celiac disease, and sickle cell anemia have been reported. We describe a 17-year-oldmale patient with a partial unilateral lentiginous lesion on the left side of the body and left upperback and incidental polyp in the descending colon.