Rectal Poorly Differentiated Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** A rectal adenocarcinoma characterized by the presence of a malignant cellular infiltrate with less than 50% glandular formation.

**Synonyms:** - Grade 3 Rectal Adenocarcinoma - Grade III Rectal Adenocarcinoma - Poorly Differentiated Rectal Adenocarcinoma