A case of capillaritis involving the left upper extremity of a 7-month-old baby girl is presented. The eruption developed at 4 months of age and the child was in good health in all other respects. A biopsy was taken and showed a superficial capillaritis. No therapy was given and the lesions underwent spontaneous involution. The eruption is differentiated from angioma serpiginosum, which is a nevoid proliferation of vascular elements, by the definite superficial capillaritis seen on the histopathologic section. This is the youngest case of capillaritis reported in the literature, the youngest case seen previously was a child of 2½ years.
Webster SB, Moyer DG. Capillaritis in an Infant. Arch Dermatol. 1969;100(6):734-735. doi:10.1001/archderm.1969.01610300084014