Authors and affiliations:

1. Pavithra Subramanian, MD, DNB Senior resident, Department of radiodiagnosis and imaging, PGIMER, Chandigarh, India- 160012 E-mail: pavi29sub@gmail.com
2. Manphool Singhal, MD Professor, Department of radiodiagnosis and imaging, PGIMER, Chandigarh, India- 160012 E-mail: drmsinghal74@gmail.com
3. Arun Sharma, MD, DM Assistant Professor, Department of radiodiagnosis and imaging, PGIMER, Chandigarh, India- 160012 E-mail: drarungautam@gmail.com