CD20 Antigen [Presence] in Tissue by Immune Stain

**Semantic type:** Laboratory Procedure

**Definition:** An immune staining procedure that detects CD20 antigen in a tissue specimen.

**Synonyms:** - B-Lymphocyte Antigen CD20 [Presence] in Tissue by Immune Stain - CD20 Ag [Presence] in Tissue by Immune stain