Lung Small Cell Carcinoma, Neuroendocrine-Low Subtype

**Semantic type:** Neoplastic Process

**Definition:** Lung small cell carcinoma characterized by low expression pattern of different neuroendocrine markers such as chromogranin A, synaptophysin, neural cell adhesion molecule 1, and gastrin-releasing peptide. It is associated with increased numbers of infiltrating immune cells (immune oasis phenotype).

**Synonyms:** - Lung Small Cell Carcinoma, NE-Low Subtype - SCLC, NE-Low Subtype