Lymphocytic infiltration of the colorectal mucosa

What it means

Abnormally increased intraepithelial lymphocyte count. This finding may be appreciated as large numbers of surface intraepithelial lymphocytes as seen (for instance) with hematoxylin and eosin staining of a colonic biopsy sample taken during colonoscopy.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category