Arteriovenous malformation simulating Kaposi's sarcoma (pseudo-Kaposi's sarcoma).
A patient whose condition was initially misdiagnosed as Kaposi's sarcoma involving the left foot received radiation therapy for that disorder. Subsequent examination yielded a correct diagnosis of arteriovenous (AV) malformation. Such cases of AV malformations with skin changes resembling Kaposi's sarcoma have been called pseudo-Kaposi's sarcoma. The clinicopathologic distinctions between Kaposi's sarcoma and pseudo-Kaposi's lesions are discussed. All patients suspected of having Kaposi's sarcoma, especially those younger than 30 years of age, should have careful evaluation for an unsuspected AV malformation.
D000328:Adult; D001158:Arteries / Q000002:abnormalities; D001165:Arteriovenous Malformations / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D005528:Foot / Q000098:blood supply*; D005534:Foot Diseases / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008297:Male; D012514:Sarcoma, Kaposi / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology*; D014680:Veins / Q000002:abnormalities