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Presentation

Overview of Benign Vulvar Neoplasms: Anatomy, Diagnosis, and Management

Description

The talk emphasized that although the vulva is a small anatomic area, benign and malignant lesions there can greatly affect quality of life, sexual health, and emotional well-being, and diagnosis is often delayed because patients and providers may feel stigma or uncertainty. It reviewed vulvar anatomy and then organized benign vulvar neoplasms by appearance and tissue type, highlighting the importance of distinguishing normal variants, benign lesions, and malignant mimickers. Key examples included condyloma acuminata versus vulvar vestibular papillomatosis, intradermal nevi, syringomas, acrochordons, angiomyofibroblastoma and aggressive angiomyxoma, Fordyce spots, epidermal inclusion cysts, steatocystoma multiplex, hidradenoma papilliferum, pyogenic granuloma, angiokeratomas, vulvar varicosities, lymphangioma circumscriptum, vulvar melanosis, atypical genital-type nevi, seborrheic keratoses, and acanthosis nigricans. For each, the speaker reviewed typical clinical appearance, common locations, when biopsy is needed, and management options such as reassurance, excision, laser, cryotherapy, topical agents, or hormonal approaches. The main takeaway was to maintain a high index of suspicion for vulvar lesions, especially if they are atypically located, symptomatic, bleeding, ulcerated, or changing, because benign-appearing lesions can still represent or mimic malignancy.

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Conclusions

Benign vulvar lesions are common but often underreported because stigma, embarrassment, and diagnostic uncertainty delay care.
Careful anatomic localization and morphologic pattern recognition are essential because the vulva includes several distinct subsite regions that host different lesions.
Many vulvar lesions can be diagnosed clinically, but atypical location, unusual appearance, ulceration, bleeding, or rapid change should lower the threshold for biopsy.
Some lesions that look alarming, such as vulvar vestibular papillomatosis, vulvar melanosis, Fordyce spots, and angiokeratomas, are benign and usually need only reassurance or no treatment.
Condyloma, molluscum, and other infectious mimickers must be distinguished from benign neoplasms because they require different counseling and management.
Certain benign lesions, including syringomas, acrochordons, cysts, and steatocystoma multiplex, may be hormonally influenced or recurrent, making treatment optional and often imperfect.
Vascular-appearing vulvar lesions such as hidradenoma papilliferum, pyogenic granuloma, hemangioma, angiokeratoma, lymphangioma circumscriptum, and vulvar varicosities can mimic malignancy and frequently warrant biopsy when atypical.
Melanocytic vulvar lesions require special caution because vulvar melanosis and atypical genital nevi are usually benign, but they can resemble vulvar melanoma histologically and clinically.
The clinician should maintain a high index of suspicion for malignant mimics because some ostensibly benign vulvar lesions can conceal or evolve into serious disease.
Patient-centered counseling is important because even benign vulvar growths can cause major psychological distress, sexual health concerns, and quality-of-life impairment.

Pooja R. Shah, MD FAAD; Mary Gail Mercurio, MD FAAD; and Franki Lambert Smith, MD FAAD.
Advisory Board: Castle Biosciences, Incyte, Sanofi Genzyme.