Pediatric Urinary Retention and Constipation: Vaginal Agenesis with Hematometrocolpos

An 11-year-old healthy female presented to the emergency department with three days of worsening suprapubic pain, urinary retention, and constipation. She was afebrile with normal vital signs. Her physical examination was notable for suprapubic distention and bulging pink vaginal tissue at the introitus. Bedside ultrasound suggested a distended bladder. Placement of a Foley catheter returned 550mL of urine with improvement of the patient’s discomfort, but repeat ultrasound visualized a persistent hypoechoic mass adjacent to the newly decompressed bladder (Figure). The obstructive cause of her abdominal pain and urinary retention was revealed by magnetic resonance imaging (MRI) of the pelvis, which confirmed distal vaginal agenesis with uterine distention from hematometrocolpos (Figure). A Foley catheter was temporarily left in place, and after pediatric and University of Washington, Division of Emergency Medicine, Seattle, Washington PeaceHealth Peace Island Medical Center, Department of Emergency Medicine, Friday Harbor, Washington *