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Extramammary Paget's disease masquerading as lichen sclerosus
1Department of Genitourinary Medicine, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK. dbansal@ncht.trent.nhs.uk
International Journal of STD & AIDS
|March 10, 2004
Summary
Vulval pruritus can stem from various conditions, including lichen sclerosus. A biopsy is crucial, as one case revealed extramammary Paget's disease, not lichen sclerosus, highlighting the need for histological confirmation.
Area of Science:
- Dermatology
- Gynecology
- Pathology
Background:
- Vulval pruritus is a common symptom with diverse etiologies, including infections and dermatoses.
- Lichen sclerosus is a significant cause of vulval pruritus, characterized by specific clinical skin changes.
- Clinical diagnosis of lichen sclerosus is common, but histological confirmation is recommended for atypical or unresponsive cases.
Observation:
- A patient presented with vulval pruritus, clinically suspected to be lichen sclerosus.
- The vulval skin biopsy, intended for lichen sclerosus, unexpectedly revealed extramammary Paget's disease.
- This case underscores the importance of considering differential diagnoses beyond initial clinical suspicion.
Findings:
- Extramammary Paget's disease (EMPD) can mimic lichen sclerosus clinically.
- Histopathological examination is essential for accurate diagnosis of vulval lesions.
- Prompt biopsy is critical to rule out malignant transformation, especially with ulceration.
Implications:
- Clinicians should maintain a low threshold for biopsy in cases of vulval pruritus, particularly those with unusual presentations or poor response to treatment.
- Accurate diagnosis through biopsy is vital for appropriate management and prognosis of vulval conditions.
- This case highlights the necessity of comprehensive histopathological evaluation to avoid misdiagnosis and ensure optimal patient care.