Parasitic abdominal wall leiomyoma (AWL) is a rare event after myomectomy. In the literature, this occurrence was reported after a laparoscopic approach with an incidence of less than 1%. The present authors report an unusual case of parasitic AWL after open myomectomy in a 46-year-old woman. Also during a laparotomy, where fibroids are usually removed intact, particular care is mandatory to avoid myoma fragments in the surgical scar. Furthermore, differential diagnosis of an abdominal wall neoformation after laparotomy for fibroid removal should include the occurrence of a parasitic myoma.