Marjolin's ulcer due to venous stasis.

The eponym Marjolin's ulcer is used to describe the malignant transformation of any benign ulcer or scar. The most common association is with burn scars, with the cancer occurring thirty years after the original injury. Venous stasis has been a rarely reported cause of this phenomenon. This case demonstrates such a finding, stressing the aggressive nature of these carcinomas, and therefore the need to examine a biopsy specimen when a benign ulcer presents with an atypical appearance.