Familial dysplastic nevus syndrome is inherited AD and characterized by tons of dysplastic nevi with transformation to malignant melanoma.
Dysplastic nevi are a precursor to melanoma. They have irregular, "dysplastic" borders. Remember the "B" in ABCD stands for irregular Borders. Nevus means mole.
acanthosis nigricans - Darkening of skin associated with Type II diabetes mellitus
basal cell carcinoma of skin - Rarely, if ever metastasizes. Commonly affects upper lip.
blue nevus - Blue-colored type of common mole. Benign.
pigmented seborrheic keratosis - "Stuck on" appearance. Mostly benign. Affects older people.
ok but why is blue nevi wrong? i thought q asks lession in both exposed and unexposed areas.