Post menopausal bleeding in patient with infantile uterus

A 58 years old female patient married for 40 years, nulliparous, presented in outpatient department with the complaint of postmenopausal bleeding off and on for six months. Her total abdominal hysterectomy and bilateral salpingoopherectomy was performed. Uterus was small in size [infantile]. Histopathology revealed endometrial hyperplasia with atypia