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December 24, 1910


Author Affiliations


JAMA. 1910;55(26):2213. doi:10.1001/jama.1910.04330260021007

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The skiagram shown here was taken during some experimental work on the chest, in an effort to demonstrate early tuberculosis. The case appeared to me to be so unusual at least, that I thought it might prove of interest to the many readers of The Journal; hence this report:

The case is that of a young man aged about 30, who has always been able by raising the arms above the head to produce a complete dislocation of the head of the humerus; the dislocation being downward and outward as is well portrayed by the skiagram. This anomalous condition causes no discomfort, as his occupation does not require any considerable employment of his arms in an overhead position, and the head of the humerus immediately resumes its proper place when the arms are in their resting position, the excursion of the head apparently

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