MONDO_0008433 (small cell lung carcinoma) can be described as follows. Small cell lung cancer (SCLC) is a highly aggressive malignant neoplasm, accounting for 10-15% of lung cancer cases, characterized byrapid growth, and early metastasis. SCLC usually manifests as a large hilar mass with bulky mediastinal lymphadenopathy presenting clinically with chest pain, persistent cough, dyspnea, wheezing, hoarseness, hemoptysis, loss of appetite, weight loss, and neurological and endocrine paraneoplastic syndromes. SCLC is primarily reported in elderly people with a history of long-term tobacco exposure. Also known as: Small cell lung cancer, lung oat cell carcinoma, lung small cell carcinoma, lung small cell neuroendocrine carcinoma, oat cell carcinoma of lung, oat cell carcinoma of the lung, oat cell lung carcinoma, small cell cancer of the lung, somatic.