Lymphogranuloma venereum: Difference between revisions

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== Background ==
+
==Background==
* Infection caused by [[Chlamydia trachomatis]] serovars L1, L2 and L3
 
* Transmitted sexually through vaginal, anal, or oral contact
 
   
 
*Infection caused by [[Chlamydia trachomatis]] serovars L1, L2 and L3
=== Epidemiology ===
 
 
*Transmitted sexually through vaginal, anal, or oral contact
* Uncommon in Canada but more common in parts of Africa, Asia, South America, and the Caribbean
 
* Occasional outbreaks among men who have sex with men
 
   
 
===Epidemiology===
== Clinical Manifestations ==
 
=== Primary LGV ===
 
* Incubation period 3 to 30 days
 
* Starts with small painless papule at site of inoculation that may ulcerate
 
* Only noticed in 50% of patients
 
   
 
*Uncommon in Canada but more common in parts of Africa, Asia, South America, and the Caribbean
=== Secondary LGV ===
 
 
*Occasional outbreaks among men who have sex with men
* Latency of 2 to 6 weeks from primary lesion
 
* Presents with systemic symptoms, including fevers and chills, malaise, myalgias, and arthralgias
 
* May have abscess with or without draining sinuses
 
* Occasionally involves arthritis, pneumonitis, hepatitis, and rarely involves carditis, aseptic meningitis, or ocular inflammation
 
   
 
==Clinical Manifestations==
==== Secondary LGV with lymphadenopathy ====
 
 
===Primary LGV===
* Most commonly involves painful inguinal or femoral lymphadenopathy, called "buboes"
 
* The "groove sign", where nodes are seen above and below the inguinal ligament, is highly specific for LGV
 
   
 
*Incubation period [[Usual incubation period::3 to 30 days]]
==== Secondary LGV with anorectal symptoms ====
 
 
*Starts with small painless papule at site of inoculation that may ulcerate
* Presents with acute hemorrhagic proctitis
 
 
*Only noticed in 50% of patients
* May also cause constipation
 
   
=== Tertiary LGV ===
+
===Secondary LGV===
* Also called chronic LGV, and occurs in 10 to 20% of untreated patients
 
* Characterized by chronic inflammation that causes:
 
** Lymphadtic obstruction leading to genital elephantiasis
 
** Genital and rectal strictures and fistulae
 
* Can cause esthiomene, extensive destruction of genitalia
 
   
 
*Latency of 2 to 6 weeks from primary lesion
== Investigations ==
 
 
*Presents with systemic symptoms, including fevers and chills, malaise, myalgias, and arthralgias
* Anoscopy/sigmoidoscopy/proctoscopy
 
 
*May have abscess with or without draining sinuses
** Similar appearance to ulcerative colitis
 
 
*Occasionally involves arthritis, pneumonitis, hepatitis, and rarely involves carditis, aseptic meningitis, or ocular inflammation
* Bubo aspiration
 
** Usually contains small amount of milky fluid
 
** Aspirate through healthy skin
 
   
 
====Secondary LGV With Lymphadenopathy====
== Prevention ==
 
  +
* Consistent use of condoms or other barrier methods, including for oral sex
 
 
*Most commonly involves painful inguinal or femoral lymphadenopathy, called "buboes"
* Avoid mucosal trauma if possible
 
 
*The "groove sign", where nodes are seen above and below the inguinal ligament, is highly specific for LGV
  +
 
====Secondary LGV With Anorectal Symptoms====
  +
 
*Presents with acute hemorrhagic proctitis
 
*May also cause constipation
  +
  +
===Tertiary LGV===
  +
 
*Also called chronic LGV, and occurs in 10 to 20% of untreated patients
 
*Characterized by chronic inflammation that causes:
 
**Lymphadtic obstruction leading to genital elephantiasis
 
**Genital and rectal strictures and fistulae
 
*Can cause esthiomene, extensive destruction of genitalia
  +
 
==Investigations==
  +
 
*Anoscopy/sigmoidoscopy/proctoscopy
 
**Similar appearance to ulcerative colitis
 
*Bubo aspiration
 
**Usually contains small amount of milky fluid
 
**Aspirate through healthy skin
  +
  +
==Diagnosis==
  +
  +
*Typically done by diagnosing [[Chlamydia trachomatis]] and then confirming the serotype with the reference laboratory
  +
*Sample should be taken from swab of lesion (if primary), or bubo aspirate, swab of rectum, vagina, oropharynx, or urethra, or urine (if secondary or tertiary)
  +
*Chlamydia testing with culture or NAAT
  +
*Confirmatory testing with DNA sequencing or RFLP at a reference laboratory
  +
  +
==Management==
  +
  +
*Do not treat with excision or incision and drainage
  +
*Antibiotics
  +
**First-line: [[Is treated by::doxycycline]] 100 mg PO bid for 21 days
  +
**Alternative: [[Is treated by::erythromycin]] 500 mg PO qid for 21 days
  +
**Alternative: [[Is treated by::azithromycin]] 1 g PO weekly for 3 weeks
  +
*Perform a test-of-cure at 3 to 4 weeks following completion of treatment
  +
*Also treat any sexual partners within the last 60 days
  +
**[[Azithromycin]] 1 g PO once or [[doxycycline]] 100 mg PO bid for 7 days
  +
*Also rule out other concurrent sexually-transmitted infections, including [[chancroid]] and [[donovanosis]]
  +
 
==Prevention==
  +
 
*Consistent use of condoms or other barrier methods, including for oral sex
 
*Avoid mucosal trauma if possible
   
 
[[Category:Sexually-transmitted infections]]
 
[[Category:Sexually-transmitted infections]]

Latest revision as of 12:35, 3 December 2020

Background

  • Infection caused by Chlamydia trachomatis serovars L1, L2 and L3
  • Transmitted sexually through vaginal, anal, or oral contact

Epidemiology

  • Uncommon in Canada but more common in parts of Africa, Asia, South America, and the Caribbean
  • Occasional outbreaks among men who have sex with men

Clinical Manifestations

Primary LGV

  • Incubation period 3 to 30 days
  • Starts with small painless papule at site of inoculation that may ulcerate
  • Only noticed in 50% of patients

Secondary LGV

  • Latency of 2 to 6 weeks from primary lesion
  • Presents with systemic symptoms, including fevers and chills, malaise, myalgias, and arthralgias
  • May have abscess with or without draining sinuses
  • Occasionally involves arthritis, pneumonitis, hepatitis, and rarely involves carditis, aseptic meningitis, or ocular inflammation

Secondary LGV With Lymphadenopathy

  • Most commonly involves painful inguinal or femoral lymphadenopathy, called "buboes"
  • The "groove sign", where nodes are seen above and below the inguinal ligament, is highly specific for LGV

Secondary LGV With Anorectal Symptoms

  • Presents with acute hemorrhagic proctitis
  • May also cause constipation

Tertiary LGV

  • Also called chronic LGV, and occurs in 10 to 20% of untreated patients
  • Characterized by chronic inflammation that causes:
    • Lymphadtic obstruction leading to genital elephantiasis
    • Genital and rectal strictures and fistulae
  • Can cause esthiomene, extensive destruction of genitalia

Investigations

  • Anoscopy/sigmoidoscopy/proctoscopy
    • Similar appearance to ulcerative colitis
  • Bubo aspiration
    • Usually contains small amount of milky fluid
    • Aspirate through healthy skin

Diagnosis

  • Typically done by diagnosing Chlamydia trachomatis and then confirming the serotype with the reference laboratory
  • Sample should be taken from swab of lesion (if primary), or bubo aspirate, swab of rectum, vagina, oropharynx, or urethra, or urine (if secondary or tertiary)
  • Chlamydia testing with culture or NAAT
  • Confirmatory testing with DNA sequencing or RFLP at a reference laboratory

Management

  • Do not treat with excision or incision and drainage
  • Antibiotics
  • Perform a test-of-cure at 3 to 4 weeks following completion of treatment
  • Also treat any sexual partners within the last 60 days
  • Also rule out other concurrent sexually-transmitted infections, including chancroid and donovanosis

Prevention

  • Consistent use of condoms or other barrier methods, including for oral sex
  • Avoid mucosal trauma if possible