Small cell carcinoma - Definition

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Small cell carcinoma is a cancer of neuroendocrine origin which owes its name to the fact that the cells that are multiplying are small. The most common of these carcinomas affects the lung: this is bronchial small cell carcinoma. This is a tumor caused primarily by smoking with significant development, intense growth, and rapid expansion to other organs. Metastases are common at the time of diagnosis and treatment is primarily by radiation or chemotherapy, much more rarely, by surgery.