Recurrent orf in an immunocompromised host.

A 30-year-old farmer with Nezelof's syndrome developed a giant orf on his hand. Recurrence followed surgical excision. Three excisions and split skin grafts were required before its eradication. He re-presented 8 years later with a further orf on the finger of his opposite hand. This lesion had not grown to the exuberant proportion of the previous lesion, but it defied repeated excisions, and various medical therapies including idoxuridine, interferon and transfer factor. Excision with hypochlorite dressings perioperatively and delayed split skin grafting led to eventual eradication.