Rectal Mucinous Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** An invasive adenocarcinoma of the rectum characterized by the presence of pools of extracellular mucin. Malignant glandular epithelial cells are present in the mucin collections. Mucin constitutes more than 50% of the lesion.

**Synonyms:** - Colloid Adenocarcinoma of Rectum - Colloid Adenocarcinoma of the Rectum - Colloidal Adenocarcinoma of Rectum - Colloidal Adenocarcinoma of the Rectum - Mucinous Adenocarcinoma of Rectum - Mucinous Adenocarcinoma of the Rectum - Rectal Colloid Adenocarcinoma - Rectal Colloidal Adenocarcinoma