Physiology A newborn has a posterior mediastinal cystic mass with several veebral anomalies. The most likely diagnosis would be which of the following? A Neuroblastoma B Bronchogenic cyst C Neuroenteric cyst D Myelocele 💡 Explanation A newborn has a posterior mediastinal cystic mass with several veebral anomalies. The most likely diagnosis would be which of the following? ✓ Correct Answer: C. Neuroenteric cyst