D. Sabatino et al., COBALAMIN DEFICIENCY PRESENTING WITH CUTANEOUS HYPERPIGMENTATION - A REPORT OF 2 SIBLINGS, Pediatric hematology and oncology, 15(5), 1998, pp. 447-450
The authors report an 2 children with pernicious anemia, sisters, who
presented with hyper-melanosis as one of the clinical manifestations.
The hypermelanosis disappeared with adequate treatment of vitamin B-12
deficiency. Vitamin B-12 deficiency should be considered in the diffe
rential diagnosis of a child presenting with hyperpigmentation and mac
rocytic red cell indices.