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On the Origins of Multifocal Lung Cancer
Alternate theories have been proposed to explain the origin of multifocal lung cancer: 1) the separate tumors are of monoclonal origin, arising from a single transformed cell and 2) the separate tumors originate from anatomically distinct progenitor cells that undergo independent genetic alterations leading to transformation. Wang et al. (p. 560) used molecular techniques to analyze genetic alterations in tumors from patients with multifocal lung cancer and observed that separate tumors in most patients had identical genetic changes consistent with a monoclonal origin. They suggest that characterizing genetic changes in multifocal tumors might eventually prove useful
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Diffuse-type Gastric Carcinoma and Transforming Growth Factor-β
Plasma Levels of Perfluorinated Chemicals and Cancer Risk
Workshop on Research for COPD and Lung Cancer