Appendix Signet Ring Cell Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** An adenocarcinoma arising from the appendix, characterized by the presence of signet-ring, mucin-producing malignant cells. The signet-ring cells constitute more than fifty-percent of the malignant cells.

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