Isolated pancreatic tuberculosis with elevated CA 19-9 levels masquerading as a malignancy

Abstract Rationale: Primary pancreatic tuberculosis is extremely rare, it presents with non-specific clinical symptoms and imaging features; it may be falsely identified as a malignancy of the pancreas. Patient Concerns: A 41-year-old male with no history of tuberculosis presented to our hospital with a 2-week history of jaundice. Diagnoses: Abdominal computed tomography (CT) showed a heterogeneous irregular hypodense mass in the head of the pancreas causing dilatation of the common bile duct (CBD), and it was enhanced after infusion of