Cardiac Arrest In Infant Due To Giant Fetus-In-Fetu

A 7-month-old boy was referred to our institution following a cardiac arrest which was treated by timely cardiopulmonary resuscitation at another hospital. Previously, he had a progressive cough with a low-grade fever despite the use of antibiotics for 4 days. He was transferred to our institution for further investigation. He had no other associated diseases, nor use of medication. His mother did not report any abnormal findings from ultrasonography during prenatal examinations. Auscultation revealed shallow respiration with moist rales in the left lung. The echocardiogram revealed a 3.8 mm atrial septal defect with the heart shifted to the right. CT scan indicated a giant tumour in the posterior mediastinum (figure 1A, B). Serum alpha-fetoprotein (AFP) and β-chorionic gonadotropin (HCG) were negative. To exclude malignant conditions where chemotherapy would be warranted, a mini-thoracotomy for biopsy was performed. However, the biopsy indicated tissues of fibre, fat and …