Kiran Agarwal1, Vandana Puri2, Ruchika Kumar Goel3, Deepti Verma3. 1. Director Professor, Department of Pathology, Lady Hardinge Medical College , New Delhi, India . 2. Assistant Professor, Department of Pathology, Lady Hardinge Medical College , New Delhi, India . 3. Senior Resident, Department of Pathology, Lady Hardinge Medical College , New Delhi, India .