We report a case of myomectomy during a cesarean-section for myoma previa and breech position of the foetus. The uterine myoma occupied the all anterior wall of the lower segment of the uterus making it impossible the hysterorraphie without a prior myomectomy. He is a patient carries a large anterior isthmic myoma of 71 mm diagnosed early in pregnancy, which the conduct is made without complications of the myoma. The foetus was in the breech position. Caesarean-myomectomy has been performed without complication per and post operatively. This clinical case shows the feasibility of the caesarean-myomectomy in some clinical situations. However this action must not be carried out systematically.