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Solitary Pulmonary Nodule
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Solitary Pulmonary Nodule
 1-4 cm in size 96-97% - Benign80% - Granulomas Histoplasmosis (example) MycobacteriaCoccidioidomycosis10% - Chondroid hamartoma (example)3-4% - Malignant70-90% - Primary Lung Cancers 10-30% - MetastasesNodules resected60-80% are malignant Risk Factors for Malignancy in Solitary Pulmonary NodulesPositive smoking history Age of patient (>50)Size (larger)Growth of lesion (increased rate) Compare with old x-rays History of previous malignancy Lack of calcification |