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Malignant Superior Sulcus Neoplasm
Definition 1
A malignant neoplasm originating from the apical lung. Most malignant superior sulcus neoplasms are bronchogenic carcinomas. This tumor may be associated with Pancoast syndrome. Also known as Pancoast tumor. --2004 (NCI Thesaurus)
Definition 2
A type of lung cancer that begins in the upper part of a lung and spreads to nearby tissues such as the ribs and vertebrae. Most Pancoast tumors are non-small cell cancers. (NCI Dictionary)
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