Pallav Gupta1, Anu Behari2, Manoj Jain3. 1. Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, UP, 226014, India. pallavkmc1@gmail.com. 2. Department of Gastrosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, UP, 226014, India. anubehari@sgpgi.ac.in. 3. Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, UP, 226014, India. mnjjain@yahoo.com.