Recurrent basal cell carcinoma. A review concerning the incidence, behavior, and management of recurrent basal cell carcinoma, with emphasis on the incompletely excised lesion.

Although controversial among dermatologists and surgeons, the conclusion based on this review is that basal cell carcinomas, with marginal histologic involvement, should be reexcised. When the margins contain tumor with one high-power field (400X), it is reasonable, in view of the 12 percent recurrence risk, to carefully follow patients who are elderly or are experiencing other extenuating circumstances.