Yield of abdominal radiographs in children with suspected intussusception; rate of pneumoperitoneum and other abdominal pathology.

OBJECTIVES: Ultrasound is the criterion standard imaging modality for the diagnosis of intussusception. However, to our knowledge the utility of abdominal radiographs to concurrently screen for pneumoperitoneum or other abdominal pathology that could have a similar presentation has not been studied. Our institutional protocol requires the performance of AP supine and left lateral decubitus views of the abdomen prior to ultrasound evaluation for intussusception, providing an opportunity to examine the yield of abdominal radiographs in this setting. Our primary objective was to determine the rate of pneumoperitoneum on screening abdominal radiographs in children undergoing evaluation for intussusception. Our secondary objective was to determine the rate that other clinically significant pathology is found on these screening abdominal radiographs. METHODS: We performed a retrospective chart review of all patients under 6 years of age who had any imaging ordered in our large urban pediatric emergency department to evaluate for suspected intussusception during the calendar years 2018-2020. RESULTS: 1115 patient encounters met our inclusion criteria. Among 1090 who had screening abdominal radiographs, 82 (8%) had findings concerning for intussusception. Of those not concerning for intussusception, 635 (58%) were read as normal, 263 (24%) showed moderate to large stool burden, 107 (10%) showed generalized bowel distention, and 22 (2%) showed abnormal gastric distention. Individually the remainder of all other findings compromised <1% of encounters and included radiopaque foreign body (8), intraabdominal calcification (4), pneumonia/effusion (3), pneumatosis intestinalis, abdominal mass (2), diaphragmatic hernia (1), rib fracture (1), appendicolith (1), feeding tube malposition (1), and bowel wall thickening (1). In one encounter the patient had a bowel perforation with pneumoperitoneum present secondary to ingestion of multiple magnets. CONCLUSIONS: Our study indicates that radiograph-detected pneumoperitoneum is rare in children with suspected intussusception. Constipation is the most common abnormal finding on screening radiographs. Other findings occur in approximately 15% of total cases, some of which require further workup.

Rupture of the Corpus Cavernosum in a Pediatric Patient.

ABSTRACT: Pediatric penile pain is an uncommon complaint and is associated with a wide differential diagnosis including infectious, inflammatory, traumatic, and idiopathic conditions. Penile fractures, anatomically known as rupture of the corpus cavernosum, are almost exclusively reported in sexually mature patients and usually involve forceful manipulation during sexual activity. Rupture of the corpus cavernosum is a true urologic emergency. Failure to recognize and treat rupture of the corpus cavernosum has been associated with residual penile angulation, persistent hematoma, abscess, erectile dysfunction, and fibrosis. We present the case of a previously healthy 7-year-old boy who presented to our emergency department with complaints of penile pain with movement after falling and colliding with staircase railing. Examination showed ecchymosis and swelling of the penile shaft; both testicles were palpable and nontender, with no perineal or scrotal bruising. Ultrasound noted discontinuity along the right corpus cavernosum consistent with a rupture of the right corpus cavernosum. Testicles were noted to be in the scrotum with normal Doppler flow. Flexible cystoscopy revealed an uninjured urethra and bladder. Our patient was urgently taken to the operating room for repair of his injury. Thanks to the timely surgical correction, there were no postsurgical complications, and he was discharged home on postoperative day 1. This case demonstrates that although most reports of corpus cavernosum injuries are associated with sexual intercourse, other modes are possible and should be considered for acute-onset penile pain in pediatric patients.