Combined Carcinoid and Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** A malignant epithelial neoplasm composed of a mixture of neuroendocrine cells with morphologic and immunohistochemical characteristics of carcinoid tumor and malignant glandular cells.

**Synonyms:** - Combined Carcinoid Neoplasm and Adenocarcinoma - Combined Carcinoid Tumor and Adenocarcinoma - Combined carcinoid and adenocarcinoma - Combined/mixed carcinoid and adenocarcinoma - Composite Carcinoid Neoplasm