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Vulvar lesion mimicking vitiligo: A case report.
Paula Gutierrez1,2, Kushal Gandhi1, Nnana Amakiri1
1Texas Tech University Health Sciences Center at the Permian Basin, Odessa, TX, USA.
Case Reports in Women'S Health
|July 10, 2020
Summary
Post-inflammatory hypopigmentation (PIH) is a skin discoloration caused by inflammation. A case study highlights the importance of skin biopsy for accurate diagnosis and effective treatment of PIH, differentiating it from vitiligo.
Area of Science:
- Dermatology
- Pathology
- Pigmentary disorders
Background:
- Post-inflammatory hypopigmentation (PIH) is an acquired loss of skin pigment following inflammation.
- Clinical presentation includes skin discoloration, but diagnosis requires histopathology.
- PIH differs from vitiligo in melanocyte and melanophage presence.
Observation:
- A 28-year-old woman presented with significant vulvovaginal discoloration in an hourglass pattern.
- Genital examination revealed intense white discoloration, with pigmentation noted at hair follicle bases, atypical for vitiligo.
- A skin biopsy confirmed mild chronic vulvitis and pigment incontinence consistent with PIH.
Findings:
- Histopathological examination is crucial for differentiating PIH from other pigmentary disorders like vitiligo.
- Successful treatment involved a high-potency topical steroid, leading to significant lesion reduction within three months.
- Identifying and addressing the initial cause of inflammation is paramount for effective PIH management.
Implications:
- Accurate diagnosis through clinical assessment and skin biopsy is essential for treating pigment deficiencies.
- Effective management of PIH requires identifying the underlying inflammatory cause and tailoring treatment.
- Thorough histopathological diagnosis, appropriate treatment, and diligent follow-up are vital for patient satisfaction in managing uncommon dermatological conditions.

