[Rectal syphilis. Apropos of 5 cases].

Five cases of rectal syphilis are described, observed during a 5-month period in 1978 in the General Manuel Belgrano Hospital. The diagnosis was made by means of endoscopical, hystological, bacteriological, and seriological examinations. The homosexual activity of all five patients and the role this plays in disseminating this type of affliction is noted. Finally, the importance of taking into account this type of pathology is stressed for the purpose of differential diagnosis and its therapeutic implications.