Small intestine lymphoma occurs when non-Hodgkin’s lymphoma affects the small intestine. It can cause abdominal pain, weight loss, and fever. Treatment involves chemotherapy, surgery, or radiation ...

This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

Intraepithelial lymphocytosis is a complex immunological phenomenon. It commonly affects the gastrointestinal tract, where damage to the lining of tissue causes the number of lymphocytes (a type of ...

An enteroscopy is a procedure that uses a flexible tube called an endoscope to examine inside the small intestine. Enteroscopy is a nonsurgical procedure to diagnose and manage conditions of the small ...

Medically reviewed by Qin Rao, MD Key Takeaways A SIBO breath test checks your breath for hydrogen or methane after drinking a sugary liquid.Jejunal aspiration is a more accurate but invasive test, ...