Thoracoabdominal duplication with hematochezia as an onset symptom in a baby: A case report

Figure 1 Imaging findings of posterior mediastinal cystic lesions. A: Transected view of enhanced chest computed tomography showing posterior mediastinal cystic lesions; B: Sagittal view showing cystic lesions and myelomeningocele; C and D: Transected and sagittal view of enhanced chest magnetic resonance imaging.

Figure 2 Upper gastroenterography showing a malrotated duodenum. A: Locally the duodenal circle showed an abnormal shape and walked to the right upper abdomen; B: Anteroposterior radiograph of the abdomen.

Figure 3 Intraoperative findings. A: Intraoperative angiography showed that the intestinal tube passed through the diaphragm, extended upward to the posterior mediastinum, and crossed the midline right to left; B: The duplicated intestine and parallel intestinal tube were excised; C: An incision was made on the lateral posterior side of the left chest and intestinal tissue was found in the posterior mediastinum; D: Thoracic intestine was excised.

Figure 4 Pathological finding. The mucosa is lined by intestinal epithelium and is composed of gastric-type glands (hematoxylin-eosin stain × 100).

Figure 5  Postoperative chest computed tomography showed myelomeningocele while the posterior mediastinal cyst was significantly reduced during outpatient follow-up.