[Eosinophilic and lymphocytic colitis: different histological manifestations of a same process in patients with chronic diarrhea].

Objectives: 1) To determine the prevalence of increased number of eosinophils in colonic mucosa of patients with lymphocytic colitis (LC). 2) To determine the coexistence of eosinophilic colitis (EC) in patients with lymphocytic colitis.

Materials And Methods: slides of adult patients with cronic diarrhea with diagnosis of LC were reviewed between October 2009 and March 2012.

[Colorectal polyps: update on diagnosis].

Histological diagnosis determines the clinical behavior of colorectal polyps. Recently new types of polyps have been described and the classification has become wider and more complex. Our aim is update the current concepts in the knowledge of colorectal polyps.