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Basal cell carcinoma — MCCQE Part 1 MCQ

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EasySkin LesionsBasal cell carcinomaMCCQE Part 1

A 65-year-old woman has a painless progressively enlarging left lower leg ulcer with an irregular rolled border and central ulceration x 3 months. History of significant sun exposure. Most likely diagnosis?

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Correct answer: C — Basal cell carcinoma

Painless ulcer with raised rolled (pearly) border and central ulceration = BCC. Most common skin cancer. UV exposure is primary risk factor. Treatment: surgical excision with margin assessment.

Reference: Canadian Dermatology Association