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August 9, 1941

Age Morphology of Primary Tubercles

Author Affiliations

By Henry C. Sweany, M.D., Medical Director of Research, Municipal Tuberculosis Sanitarium, Chicago. Cloth. Price, $5. Pp. 265, with 73 plates. Springfield, Illinois & Baltimore: Charles C. Thomas, 1941.

JAMA. 1941;117(6):494. doi:10.1001/jama.1941.02820320086032

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Based on the idea that practically all biologic phenomena are more or less functions of time, the author has made a rather comprehensive study of primary tubercles. He presents evidence in support of the thesis of the relationship of age to morphology of primary tubercles. He presents the interesting analogy of the aging tubercles to the various changes in the earth which become understandable in the science of geology. The application of "morphology" criteria may be applied practically to approximate the time of contact, the location of the source of contagion in conjugal infection, the relation of the onset of tuberculosis to other diseases. This method may also prove useful in medicolegal work and in government compensation following military or naval service. The author admits the controversial nature of the subject. Further study is necessary to confirm this theory, and it is questionable whether one can go as far as

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