. The American journal of roentgenology, radium therapy and nuclear medicine . • a small elliptical shadow, which is ratherwidely separated from the upper end of theshaft. Our earliest observation was sevenweeks. During the first two years no other epi-physis makes its appearance, except for a Observations on the Normally Developing Shoulder 729. Fig. 21. Fig. 22. Figures 20, 21 and 22 represent the altered radiologic appearance of the same shoulder, caused by a change in its position. small shadow which may be interpreted asthe early ossification within the coracoid pro-cess. During the third
. The American journal of roentgenology, radium therapy and nuclear medicine . • a small elliptical shadow, which is ratherwidely separated from the upper end of theshaft. Our earliest observation was sevenweeks. During the first two years no other epi-physis makes its appearance, except for a Observations on the Normally Developing Shoulder 729. Fig. 21. Fig. 22. Figures 20, 21 and 22 represent the altered radiologic appearance of the same shoulder, caused by a change in its position. small shadow which may be interpreted asthe early ossification within the coracoid pro-cess. During the third year the head of the hu-merus increases rather rapidly in size. Theupper end of the shaft takes on the appear-ance of a double inclined plane, higher nearthe middle and sloping downward to eitherside. At this time there is a shadow on theouter and lower aspect of the epiphysis forthe head, which may be ossification within aseparate epiphysis for the greater tuberos-ity or it may be that the greater tuberosityis a downward growth from the originalepiphysis for the head. In the pictures noclear line of demarcation can be made outbetween the shadows. Beginning ossification within the coracoidis evident at three years. In order to avoid errors of interpretationin roentgenograms of the shoulder one musttake several views. Ossification within
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