Newborn with a mass in the left chest on prenatal ultrasound Pediatric Imaging Surgical-Pathological-Clinical May 5, 2022March 30, 2022 Gross pathological image shows the heart and great vessels flipped superiorly, revealing an extremely hypoplastic left lung. The right lung is also somewhat hypoplastic in size. The diagnosis was left-sided congenital diaphragmatic hernia. Related Published May 5, 2022March 30, 2022