Squamous carcinoma in a venous ulcer.
D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D006801:Humans; D007866:Leg / Q000098:blood supply; D007871:Leg Ulcer / Q000150:complications*; D008175:Lung Neoplasms; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012878:Skin Neoplasms / Q000209:etiology*; D014648:Varicose Veins / Q000150:complications; D014680:Veins / Q000473:pathology