Pigmented Lesion - nevus

Diagnosis: Pigmented Lesion - nevus

This is a 14 year old female patient with a benign pigmented lesion that shows nevus on unknown

Clinical Presentation

This is a 14 year old female patient with a benign pigmented lesion that shows nevus on unknown

Clinical History

Pigmented papule or macule. Stable appearance. Monitor for ABCDE changes.

Treatment

Observation with regular monitoring. Excision if atypical features or diagnostic concern.

Differential Diagnosis

• Melanoma • Seborrheic keratosis • Dermatofibroma • Blue nevus • Spitz nevus • Basal cell carcinoma

Key Learnings

• Common mole — benign neoplasm of melanocytes (nevus cells) • Types by location: junctional (flat), compound (raised, pigmented), intradermal (dome-shaped, less pigmented) • Maturation sequence: junctional → compound → intradermal (Unna-Abt maturation) • Normal adults have 10-40 moles • >50 nevi or >5 atypical nevi = increased melanoma risk • ABCDE criteria for monitoring

Tags: benign, dermatology, nevus