What is a commonly indicated use of endoscopy with biopsy in suspected IBD?

• A. To differentiate IBD from infections or lymphoma.
• B. To perform colon biopsies for cancer screening only.
• C. To directly measure intestinal pH.
• D. To replace the need for any imaging.

Answer: (A)

Endoscopy with biopsy is used in suspected inflammatory bowel disease to obtain tissue for histopathology, which helps distinguish inflammatory or autoimmune bowel disease from other causes of intestinal inflammation such as infections and lymphoma. The tissue can reveal chronic inflammatory patterns, architectural distortion, and, when present, granulomas that support a diagnosis of Crohn’s disease or ulcerative colitis. It also allows identification of infectious processes (for example, viral, bacterial, or parasitic infections) and neoplastic infiltration that could masquerade as IBD, guiding appropriate treatment.

Measuring intestinal pH and cancer screening by biopsy are not the primary aims in this scenario. Endoscopy provides direct visualization and tissue for diagnosis, not a direct pH measurement, and while biopsies can contribute to cancer screening, the main purpose in suspected IBD is to differentiate IBD from infections or lymphoma and to establish a definitive tissue diagnosis.