title: sQUIZ your knowledge! Perianal ulcers in an immunocompromised patient.
authors.affiliation: Department of Dermatology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
authors.forename: Ignacio
authors.initials: I
authors.lastname: Hernández-Aragüés
authors.affiliation: Department of Dermatology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
authors.forename: Pedro
authors.initials: P
authors.lastname: Vilas-Boas
authors.affiliation: Department of Dermatology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Suárez-Fernández
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D000328:Adult; D006561:Herpes Simplex / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D006801:Humans; D008297:Male; D010502:Perineum; D012883:Skin Ulcer / Q000821:virology*