RT Book, Section A1 Tschachler, Erwin A2 Goldsmith, Lowell A. A2 Katz, Stephen I. A2 Gilchrest, Barbara A. A2 Paller, Amy S. A2 Leffell, David J. A2 Wolff, Klaus SR Print(0) ID 56089694 T1 Chapter 197. Human T-Lymphotropic Viruses T2 Fitzpatrick's Dermatology in General Medicine, 8e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-166904-7 LK accessmedicine.mhmedical.com/content.aspx?aid=56089694 RD 2024/04/19 AB |PrintHuman T-Lymphotropic Virus 1-Induced Skin Diseases at a GlanceAn estimated 10–20 million people are infected by human T-cell lymphotropic virus type 1 (HTLV-1) worldwide, with endemic pockets of high prevalence in Southern Japan and the Caribbean islands.Infective dermatitis is a recalcitrant form of eczema occurring in HTLV-1-infected children in the Caribbean.Adult T-cell leukemia (ATL) shows monoclonal HTLV-1 provirus integration in tumor cells and occurs in four clinical variants, all of which tend to show skin involvement:Smoldering ATL—5% of all cases.Chronic ATL—15% of all cases.Lymphoma-type ATL—20% of all cases.Acute ATL—60% of all cases.The prognosis of lymphoma-type and acute ATL is very poor despite chemotherapy, with a projected 4-year survival of 5%.