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January 20, 1923, Vol 80, No. 3 >
ARTICLE | January 20, 1923

PNEUMOLITH OR BRONCHOLITH

HERBERT FOX, M.D.
JAMA. 1923;80(3):175-176. doi:10.1001/jama.1923.02640300025009.
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The occurrence of pulmonary or bronchial stones coughed up with the sputum is not so common that the observation of a single case on a single occasion does not present data worthy of record. It so happens that just at the time of the appearance of an article on pulmonary calcification by Elliott,1 two pieces of calcified matter were brought to me by a patient long a sufferer with chronic bronchitis.

The causes, distribution, composition and clinical evidences of pulmonary calculi are well brought out by Elliott,1 by Wells,2 by Norris and Landis3 and by Kidd,4 but there is no extensive collection of literature. I append to this short report a list5 of the most important articles since Poulalion's thesis in 1892. A few are not listed because of their inaccessibility.

There are two principal varieties of pulmonary calcification: one that has its origin

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