Histopathology essential scenario

• A. For all cases, imaging must show abnormality
• B. When imaging or endoscopy suggests inflammatory or neoplastic disease or to differentiate IBD from lymphoma
• C. Never needed
• D. Only after routine blood tests

Answer: (B)

Tissue diagnosis becomes essential when imaging or endoscopy raises suspicion for inflammatory or neoplastic disease or to distinguish inflammatory bowel disease from lymphoma. Imaging can show ulcers, masses, or thickened walls, but it often cannot reveal whether the process is inflammatory or malignant. A biopsy examined under the microscope provides definitive clues: IBD tends to show chronic inflammatory infiltrates with mucosal architectural changes, while lymphoma shows clonal lymphoid proliferation with characteristic cellular features and can be further defined with immunohistochemistry. This histopathologic information directly guides treatment decisions and prognosis. In other scenarios, tissue diagnosis isn’t always required, but for suspected inflammatory or neoplastic disease and to differentiate IBD from lymphoma, it’s the most reliable evidence.