Approach to lymphogranuloma venereum.

OBJECTIVE: To review the literature about lymphogranuloma venereum (LGV) and to provide an overview and discussion of practice guidelines. SOURCES OF INFORMATION: The terms Chlamydia trachomatis and lymphogranuloma venereum were searched separately in PubMed. Empirical studies, practice reviews, and clinical guidelines were included. All reference lists were reviewed for additional articles. MAIN MESSAGE: Since 2003, there has been a resurgence of LGV among men who have sex with men in many Western countries, including Canada. Although LGV is a serovar of Chlamydia trachomatis (serovar L), it can invade regional lymph nodes, and consequently presents with different symptoms than the other subtypes of chlamydia (serovars A through K). Specifically, LGV transitions through 3 phases: a painless papule or ulcer at the site of inoculation; invasion of the regional lymph nodes, which can present with an inguinal or rectal syndrome; and irreversible destruction of lymph tissue. In contrast, chlamydia serovars A to K exclusively produce superficial mucosal infections. Lymphogranuloma venereum also requires a different treatment regimen than other chlamydia serovars.
CONCLUSION: In light of the current resurgence of LGV, its unique symptoms and clinical course, and its requirement for a different treatment than other chlamydia serovars, it is important for primary care providers to recognize when LGV should be included as an appropriate differential diagnosis. Copyright© the College of Family Physicians of Canada.