[Clinical polymorphism of anorectal lymphogranuloma venereum in Buenos Aires City].

From 2003 to date there has been a rising number of reports from developed countries on cases of lymphogranuloma venereum with anorectal localization in HIV-infected men who have sex with men. This localization differs from the classical inguinal abscesses which are typical of the disease in the tropics. The objective of this work is to document the presence of anorectal lymphogranuloma venereum in Buenos Aires and to describe its varied clinical manifestations. In the context of a systematic survey of rectal chlamydial infection, in just one trimester, eight cases of lymphogranuloma venereum caused by Chlamydia trachomatis biovar LGV were identified in HIV-infected men who have sex with men. The most frequent anorectal manifestations were pus, tenesmus, rectal urgency, and mucous or haemopurulent discharge. The proctitis was mostly mild or moderate and, in some cases, it was accompanied by perianal lesions. Given the great polymorphism and unspecificity of the clinical manifestations of the disease, we warn on the presence of this form of rectal lymphogranuloma venereum in our setting. If Chlamydia trachomatis is detected, it should be genotyped, not only for the correct diagnosis and treatment but also for epidemiological surveillance. Where genotyping is not available, the disease must be considered as caused by the LGV biovar and treated accordingly.