Extramammary Paget's disease (EMPD) is a malignant neoplasm that arises in areas rich in apocrine glands. 1 Mammary Paget's disease was first described by James Paget in 1874. 2 Radcliffe Crocker reported EMPD involving the scrotum and penis in 1889, 3 and William Dubreuilh described vulvar EMPD in 1901. 4 As of now, it has been known that EMPD occurs more frequently in Asians (10 cases per million) than in Westerners (0.9 cases per million), and the most frequently affected site is the vulva, followed by perianal, scrotal, and penile skin. 5 In the clinical diagnosis of EMPD, it is often misdiagnosed as many other benign inflammatory skin diseases such as contact dermatitis, seborrheic dermatitis, eczema, and superficial fungal infections due to
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