. The diseases of infancy and childhood. t was very slight forthe period of five years, the average for the entire 495 observations grams, which was about the same as the average for each of the yearstaken separately. Excluding cases in which the organ was so large as tobe considered abnormal (10 grams or over), the average weight at birthwas grams; during infancy and early childhood. 4 grams. Theresults of these observations do not differ essentially from those of Fried-leben, which have been so extensively misquoted. It may therefore be 892 DISEASES OF THE DUCTLESS GLANDS assume
. The diseases of infancy and childhood. t was very slight forthe period of five years, the average for the entire 495 observations grams, which was about the same as the average for each of the yearstaken separately. Excluding cases in which the organ was so large as tobe considered abnormal (10 grams or over), the average weight at birthwas grams; during infancy and early childhood. 4 grams. Theresults of these observations do not differ essentially from those of Fried-leben, which have been so extensively misquoted. It may therefore be 892 DISEASES OF THE DUCTLESS GLANDS assumed that the average weight of the normal thymus at hirth is from6 to 7 grams; from birth to five years, from 3 to 4 grams. Anythingover 10 grams may be considered abnormal. In the status lymphaticus the thymus is often from five to ten timeslarger than normal. In the marked cases its weight is from 30 to 40grams; in the less marked cases from 15 to 20 grams. The appearanceof the enlarged thymus is well shown in the accompanying illustra-. Fig. 139.—Enlarged Thymus. The lungs, heart, and thymus are shown in the lungs have been turned back, showing the two lateral lobes of the thymus over-lapping the heart; the central lobe, above, covers the trachea. History.—Breast fed,male child, nine months old, well developed; ill less than twenty-four hours; dyspnea,slight cyanosis, with death from asphyxia. T. 103° F. Autopsy.—Besides thelarge thymus there were present the general lesions of the status lymphaticus to amarked degree; lungs deeply congested. tion (Fig. 139). A thymus of the size shown weighs about 45 grams,or 1\ ounces. In this instance it was nearly as large as one of the lobesof the lung. In general appearance, the enlarged thymus is rather morevascular than normal, but other than hyperplasia, shows no constant oressential changes, either by gross or microscopical examination. The lymph nodes of the tracheobronchial region are greatly enlarged,often to th
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
