Rectosigmoid Signet Ring Cell Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** An infiltrating adenocarcinoma that arises from the rectosigmoid junction and is characterized by the presence of malignant glandular cells with prominent intracytoplasmic mucin. These cells constitute more than 50% of the malignant cellular population.

**Synonyms:** - Rectosigmoid Signet Ring Cell Carcinoma - Rectosigmoid Signet-Ring Cell Carcinoma