Extensive Verrucae over Healed Pemphigus Vulgaris Lesions in an Immunocompetent Female: A Rare Presentation of Wolf's Isotopic Response.

Wolf's isotopic response refers to the occurrence of a skin disorder at the site of another unrelated and already healed skin disease. The cases described so far in the literature include herpes (simplex or zoster) as the primary disease in most cases and a myriad of skin diseases as the secondary disease. Here, we report a case where extensive verrucae developed over the sites of healed lesions of pemphigus vulgaris, in an immunocompetent female. Pemphigus vulgaris being the primary disease and absence of verrucae over normal skin makes this case, a rare presentation.