{"id":4443,"date":"2021-09-15T15:56:56","date_gmt":"2021-09-15T03:56:56","guid":{"rendered":"https:\/\/www.awanuilabs.co.nz\/central\/wellington\/?page_id=4443"},"modified":"2025-05-05T14:16:13","modified_gmt":"2025-05-05T02:16:13","slug":"lymphogranuloma-venereum-lgv","status":"publish","type":"page","link":"https:\/\/www.awanuilabs.co.nz\/central\/wellington\/for-referrers\/microbiology\/how-do-i-diagnose\/lymphogranuloma-venereum-lgv\/","title":{"rendered":"Lymphogranuloma venereum (LGV)"},"content":{"rendered":"\n<p><strong>Infection:<\/strong>&nbsp; Lymphogranuloma venereum; LGV; <em>Chlamydia trachomatis<\/em> serovars L1-3<\/p>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Brief description:<\/summary><div class=\"ab-accordion-text\">\n<p>Lymphogranuloma venereum (LGV) is a genital ulcer disease caused by certain serovars (types) of <em>Chlamydia trachomatis.<\/em><\/p>\n\n\n\n<ul>\n<li>Serovars D-K cause the typical genital Chlamydia STI<\/li>\n\n\n\n<li>Serovars L1, L2, L3 cause LGV, which is a more severe inflammatory disease, which can involve the inguinal lymph nodes and ano-rectum.<\/li>\n<\/ul>\n\n\n\n<p>Globally occurs most commonly in the tropics. In New Zealand is usually seen among men who have sex with men (MSM) and most commonly presents as proctitis.<\/p>\n\n\n\n<p>The diagnosis is difficult to establish clinically and relies on laboratory testing.<\/p>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Did you know?<\/summary><div class=\"ab-accordion-text\">\n<p>Can be mistaken for inflammatory bowel disease e.g. ulcerative colitis. If not recognised and treated can lead to fibrosis and strictures in the anogenital tract.<\/p>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Who should I test?<\/summary><div class=\"ab-accordion-text\">\n<ul>\n<li>LGV is difficult to diagnose clinically and requires a high index suspicion.<\/li>\n\n\n\n<li>LGV should be suspected in<strong> all MSM presenting with proctitis or significant anorectal pain\/discharge.<\/strong><\/li>\n<\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Test of choice:<\/summary><div class=\"ab-accordion-text\">\n<p>Request <strong><a href=\"https:\/\/scg.labapps.nz\/#\/WEL\/details\/27628\" target=\"_blank\" rel=\"noreferrer noopener\">Chlamydia LGV NAAT\/PCR<\/a><\/strong><\/p>\n\n\n\n<p>The initial test to diagnose LGV is a <strong>standard Chlamydia NAAT\/PCR test <\/strong>on an<strong> anorectal swab<\/strong>.<\/p>\n\n\n\n<ul>\n<li>Excellent <strong>sensitivity<\/strong> &#8211; a <strong>negative<\/strong> test on a well-collected sample <strong>excludes<\/strong> LGV.<\/li>\n\n\n\n<li><strong>Non-specific<\/strong> &#8211; a <strong>positive<\/strong> test confirms <em>Chlamydia<\/em> infection, but <strong>doesn\u2019t<\/strong> <strong>differentiate<\/strong> between \u2018standard\u2019 <em>Chlamydia<\/em> and LGV<\/li>\n<\/ul>\n\n\n\n<p>A separate, specific, LGV test is required to confirm LGV.<\/p>\n\n\n\n<ul>\n<li>In our laboratory, a <strong>positive Chlamydia NAAT from an anorectal swab<\/strong> will automatically have LGV testing <strong>added on<\/strong>.<\/li>\n<\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Other considerations:<\/summary><div class=\"ab-accordion-text\">\n<ul>\n<li>Identification of LGV is important as a <strong>longer duration of treatment<\/strong> (3 weeks) than typical genital <em>Chlamydia<\/em> infection is required for cure<\/li>\n\n\n\n<li>All patients diagnosed with LGV should be tested for <strong>HIV infection, syphilis<\/strong>, and <strong>other STIs<\/strong>.<\/li>\n\n\n\n<li>All sexual contacts from the <strong>prior 3 months<\/strong> should be offered treatment.<\/li>\n<\/ul>\n<\/div><\/details><\/div>\n","protected":false},"excerpt":{"rendered":"Infection:&nbsp; Lymphogranuloma venereum; LGV; Chlamydia trachomatis serovars L1-3","protected":false},"author":18,"featured_media":0,"parent":4222,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-left-sidebar.php","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lymphogranuloma venereum (LGV) &#8211; Awanui Labs - Wellington<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.awanuilabs.co.nz\/central\/wellington\/for-referrers\/microbiology\/how-do-i-diagnose\/lymphogranuloma-venereum-lgv\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lymphogranuloma venereum (LGV) &#8211; Awanui Labs - Wellington\" \/>\n<meta property=\"og:description\" content=\"Infection:&nbsp; 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