Abstract

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• Extramammary Paget's disease (EMPD) is a rare intraepithelial adenocarcinoma arising from apocrine glands. We describe an innovative surgical technique to manage extensive cutaneous malignancies in a notoriously challenging location. The patient is a 78-year-old male who presented with 'jock itch' on his left groin refractory to topical treatment. A shave biopsy of the lesion demonstrated non-invasive EMPD which yielded a urology consult. Rather than the standard wide local excision (WLE), which can lead to positive margins, progression, and recurrence, we used a modified the Mohs technique and staged the procedure, providing excellent oncologic and cosmetic outcomes. The described technique has particular merit with uncertain margin status and when geography of lesions preclude a standard Mohs surgery.