Intraepithelial lymphocytosis is when there's a higher than normal number of lymphocytes in the lining of your gastrointestinal tract. Learn about potential causes, symptoms, and treatment.

The Wall of the Gastrointestinal Tract High-frequency EUS produces uniquely clear and detailed images of the wall of the gastrointestinal tract and surrounding organs (Figure 1).

The gastrointestinal (GI) tract is innervated by intrinsic neurons belonging to the enteric nervous system and by axons of extrinsic sympathetic, parasympathetic, and visceral afferent neurons.