Histology of the affected area commonly shows dense perivascular lymphocytic infiltration with reticulated degeneration of the epidermis. A study by Iwatsuki et al. detected Epstein-Barr virus (EBV) positive T-cells in the perivascular infiltration on biopsy in 28/29 patients tested. Antibody titers to EBV were measured in 14 of these patients and only five had abnormal antibody patterns consistent with chronic active EBV infection.
Hydroa vacciniforme
Tinea imbricata
Trichostasis spinulosa
Telogen effluvium
Melanosis coli
Bradyphrenia
Ichthyosis bullosa of Siemens
Tinea manuum