Genital leiomyomas (also known as 'Dartoic leiomyomas') are leiomyomas that originate in the dartos muscles of the genitalia, areola, and nipple. Genital leiomyomas (also known as 'Dartoic leiomyomas') are leiomyomas that originate in the dartos muscles of the genitalia, areola, and nipple.