VIJAYAWADA: As impossible as it may seem, a 35-year-old patient from Prakasam district had a tumour measuring 21x19x13 cm, said to be the world’s largest (as per medical records), removed from his small intestine. The largest tumour was diagnosed as mantle cell lymphoma in biopsy. Gastroenterologist Dr Karthik Babu Perumallu of Ramesh Sanghamitra Hospitals, made it to the Limca Book of Records for conducting the rare surgery. Dr P Ramesh Babu, MD of Ramesh Hospitals, complimented the doctor for the feat.