Satvinder Singh Bakshi1, Anandraj Vaithy K2. 1. Department of ENT and Head & Neck Surgery, Mahatma Gandhi Medical College and Research Institute, Pillaiyarkuppam, Pondicherry, India. Electronic address: saty.bakshi@gmail.com. 2. Department of Pathology, Mahatma Gandhi Medical College and Research Institute, Pillaiyarkuppam, Pondicherry, India.