Esthiomene — Dermatology Exam Notes

Pathogenesis

• LGV infects lymphatic tissue → chronic lymphatic obstruction and fibrosis
• Untreated inflammation leads to lymphatic destruction → lymphedema → secondary chronic ulceration and sclerosis of overlying skin
• More common in women because vulvar/vaginal lymphatics drain to deep pelvic/retroperitoneal nodes (silent primary disease), so tertiary damage is more frequent than the bubo stage seen in men

Clinical Features

• Massive labial/vulval elephantiasis (chronic non-pitting swelling of labia, sometimes penis/scrotum in men — "genital elephantiasis")
• Chronic ulceration of the swollen tissue, described as "eating away" of the vulva
• Progressive fibrosis and scarring
• Often accompanied by other tertiary LGV features:
  • Rectovaginal/rectal fistulae ("watering-can perineum")
  • "Lymphorrhoids" (perianal lymphatic outgrowths resembling condylomata)
  • Anorectal strictures, perirectal abscesses
  • Frozen pelvis, infertility, subcutaneous sclerosis

Stage of Disease

1. Primary stage — painless genital papule/ulcer (often unnoticed)
2. Secondary stage — painful unilateral inguinal/femoral lymphadenopathy ("bubo"), groove sign (nodes above and below Poupart's ligament, pathognomonic but seen in only 10-20%), acute anorectal syndrome (proctitis) especially in women/MSM
3. Tertiary stage — years after untreated infection: esthiomene, elephantiasis, strictures, fistulae, lymphorrhoids

Differential Diagnosis

• Donovanosis (granuloma inguinale) — also causes genital elephantiasis, needs to be distinguished (donovanosis elephantiasis can mimic esthiomene)
• Filarial elephantiasis
• Chronic lymphedema from other causes (post-surgical, malignancy)

Diagnosis

• Clinical suspicion in late genital swelling/ulceration with history of STI
• Serology (complement fixation/micro-immunofluorescence for C. trachomatis) or NAAT/PCR from lesion, useful mainly in earlier stages; in tertiary stage diagnosis is largely clinical + exclusion of mimics
• Biopsy may show chronic granulomatous inflammation and fibrosis

Treatment

• Doxycycline 100 mg BID for 21 days is the treatment of choice for LGV at any stage (erythromycin/azithromycin as alternatives, e.g., in pregnancy)
• Established esthiomene/elephantiasis is largely irreversible with antibiotics — fibrotic damage does not regress
• Management is often surgical: reconstructive/reductive surgery for elephantiasis, treatment of strictures (dilatation) or fistulae as needed
• Treat sexual partners; screen for HIV and other STIs (LGV in MSM is strongly associated with HIV)

Key Exam Points

• Esthiomene = tertiary LGV complication, mainly in women
• "Eating away" = progressive ulcerative destruction of vulva with elephantiasis
• Antibiotics prevent progression but do NOT reverse established fibrotic/elephantiasis changes — early treatment of primary/secondary LGV is the real prevention
• Associate with groove sign, watering-can perineum, lymphorrhoids as classic LGV tertiary triad-type findings

• Fitzpatrick's Dermatology, Vol 1-2 (Tertiary Stage, LGV chapter)
• Andrews' Diseases of the Skin, Clinical Dermatology (Lymphogranuloma Venereum)
• Harrison's Principles of Internal Medicine, 22nd ed. (Genital Infections)
• Yamada's Textbook of Gastroenterology (LGV Proctitis)
• Goldman-Cecil Medicine (Prognosis, LGV)
• Park's Textbook of Preventive and Social Medicine

Esthiomene — In-Depth Notes (MD Derma Theory)

1. Definition

Note the terminology: "genital elephantiasis" is the broader term for grotesque lymphedematous enlargement of the genitalia from any cause; "esthiomene" is used specifically when this elephantiasis is accompanied by ulceration (classically in females) — though in practice many textbooks use the two terms interchangeably.

2. Common Pathophysiology (regardless of cause)

3. Classification of Causes of Esthiomene / Genital Elephantiasis

A. Venereal (Sexually Transmitted) Causes

B. Non-Venereal Causes

4. Approach to a Case of Genital Elephantiasis / Esthiomene

1. History: sexual exposure, travel to filarial-endemic area, TB contact/symptoms, GI symptoms (Crohn), prior pelvic surgery/radiotherapy
2. Investigations:
   • Blood smear for microfilariae (night sample), filarial antibody/antigen test
   • VDRL/RPR, HIV serology
   • LGV serology (micro-immunofluorescence) / NAAT-PCR for C. trachomatis L-serovars
   • Tissue smear for Donovan bodies; biopsy for granuloma inguinale
   • Mantoux/AFB smear/culture or GeneXpert if TB suspected
   • Biopsy: lymphangiectasia (LGV), granulomas (TB, Crohn), Donovan bodies (donovanosis)
3. Diagnosis of exclusion for idiopathic/congenital causes

5. Treatment (varies by cause)

• LGV: Doxycycline 100 mg BID x 21 days (prolonged courses, sometimes months, reported for established elephantiasis)
• Donovanosis: Azithromycin/doxycycline for a minimum of 3 weeks or until healed
• Filariasis: Diethylcarbamazine/albendazole, limb/genital hygiene, care of secondary infections
• TB: Standard anti-tubercular therapy (ATT)
• Crohn disease: Immunosuppression (steroids, azathioprine, anti-TNF agents) for the underlying disease
• All causes: established elephantiasis/fibrosis is largely irreversible with medical therapy alone — surgical debulking/reconstruction (reductive vulvoplasty, plastic surgery) is often needed once fibrosis is set, always under antibiotic cover if an infective cause is active

Key Exam Takeaways

• Esthiomene = genital elephantiasis + ulceration, mainly in women
• Final common pathway = lymphatic obstruction → fibrosis → elephantiasis, regardless of cause
• Classify causes as venereal (LGV, donovanosis, syphilis) vs non-venereal (filariasis — most common overall, TB, Crohn disease, malignancy, iatrogenic, idiopathic)
• Always rule out filariasis, TB, and malignancy before attributing to an STI
• Fibrotic changes do not regress with antibiotics; surgery is often required for established disease

• Fitzpatrick's Dermatology, Andrews' Diseases of the Skin, Harrison's Principles of Internal Medicine, Robbins Pathologic Basis of Disease, Park's Textbook of PSM, Berek & Novak's Gynecology, Sabiston/Schwartz's Surgery (vulvar Crohn sections)
• Cerebriform elephantiasis of the vulva following tuberculous lymphadenitis - IJDVL, discusses full classification of genital elephantiasis causes
• Esthiomene: An unusual presentation of elephantiasis - case report with differential work-up
• Sarkar R et al., "Genital elephantiasis," Int J STD AIDS 2002 (PMID: 12015020)
• Recent case series on vulvar Crohn disease (PMID: 33722830, CMAJ 2021) and a 2025 case report (PMID: 40630559) confirm granulomatous vulvar lymphedema as a recognized non-venereal cause, consistent with the classification above.