A benign "malignant" ulcer.
D000368:Aged; D001327:Autoimmune Diseases / Q000150:complications; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D005542:Forearm; D006801:Humans; D012878:Skin Neoplasms / Q000175:diagnosis; D012883:Skin Ulcer / Q000150:complications / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D013966:Thyroiditis / Q000150:complications