• In two cases of target blue nevi of the foot, both lesions displayed a distinctive concentric pigmentary variation. This correlated histologically with a peripheral alteration of dermal collagen accompanied by a focal regression or differentiation of blue nevus cells. The resulting distinctive target blue nevus can be clinically differentiated from a malignant melanoma.
(Arch Dermatol 1983;119:919-920)
Bondi EE, Elder D, Guerry D, Clark WH. Target Blue Nevus. Arch Dermatol. 1983;119(11):919-920. doi:10.1001/archderm.1983.01650350047013