Contributed By :Dr Shaliq Navas, PG resident, VMMC and Safdarjung Hospital, New Delhi Dr Ritu Nair Misra, Professor and Consultant, Department of Radiodiagnosis, VMMC and SJH, New Delhi Dr Neha Bagri, Professor, Department of Radiodiagnosis, VMMC and SJH, New Delhi Dr Aanchal Bhayana, Associate Professor, Department of Radiodiagnosis, VMMC and SJH, New Delhi