Cesarean section scar diverticulum

Cesarean section scar diverticulums are a defect in the lower uterine cavity at the site of the cesarean section scar. 

Clinical presentation

• mostly asymptomatic
• postmenstrual spotting
• in a study was found to be the only finding in patients with bleeding disturbances

Radiographic features

Can be imaged on hysterosalpingography and ultrasonography.

There may be a defect or a focal outpouching at the site of prior cesarean section. Location can be in the lower uterine segment or upper endocervical canal.

Differential diagnosis

• prominent cervical glands 
• post myomectomy diverticula 
• Gartner's duct cyst: long, tubular structure parallel to uterine cavity
• adenomyosis: location of defect anywhere along uterine cavity