GPT and non-Hodgkin lymphoma: The aim of this study is to recognize the challenges faced while diagnosing retroperitoneal NHL and the need for timely management of this disease.<h4>Case report</h4>A 66-year-old Hispanic female with a medical history of treatment compliant asthma and hypertension presented to the ER with complaints of abdominal pain in the right upper quadrant with serum lipase >3000 U/L and elevated liver function tests (LFTs), aspartate aminotransferase (AST) 139 U/L, alanine aminotransferase (ALT) 65 U/L, alkaline phosphatase (ALP) 122 U/L.