When * Localized: the<unk>  is confined to the lung (aka: limited stage SCLC). * Regional: the<unk>  has spread to lymph nodes (or glands) within the chest (between limited and extensive stage SCLC). Lymph nodes act as a filtering system outside the lung, collecting<unk>  cells that are beginning to migrate out of the lung. * Distant: the<unk>  has spread (or metastasized) to other parts of the body (aka: extensive stage SCLC). At the time of diagnosis, 60–70% of people already have metastases. Small-cell carcinoma is an undifferentiated neoplasm composed of primitive-appearing cells. As the name implies, the cells in small-cell carcinomas are smaller than normal cells, and barely have room for any cytoplasm. Some researchers identify this as a failure in the mechanism that controls the size of the cells.
types of Lung cancer
medical cause of Hemoptysis
symptom of Lung cancer
medical cause of Bronchiolitis
medical cause of Bronchiectasis
types of Kidney cancer
symptom of Mesothelioma
medical cause of Neoplasm