A hard concretion in a bronchus, usually resulting from the erosion of a tuberculous or other granulomatous lymph node through the bronchial wall into the lumen. SYN: bronchial calculus. [broncho- + G. lithos, stone]
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bron·cho·lith (brongґko-lith) [broncho- + -lith] a concretion in the bronchi, formed by accretion about an inorganic nucleus, or from calcified portions of lung tissue or adjacent lymph nodes; called also bronchial calculus.Medical dictionary. 2011.