. Diseases of infancy and childhood . Fig. 154.—Temperature curve during the fifth month, when the diseaseis more extended and softening has taken place Avith the formation of cavi-ties. The temperature is more hectic in character. The morning tempera-ture may be normal or sid)normal. wliih* tlic (>MMung t^Miipciature rangesbetween 103° and 105° F. (Original.) Pathology.—Oslei- slates tliat small (.avities are by no moans rare inchronic pulmonary luhorculosis o\ ihiMivn. but very hirgo excavations arerare; thus in^ vMIT) cases noted by Hartluv, and Sanne there were 7 7 eases 480 THE INFECTI
. Diseases of infancy and childhood . Fig. 154.—Temperature curve during the fifth month, when the diseaseis more extended and softening has taken place Avith the formation of cavi-ties. The temperature is more hectic in character. The morning tempera-ture may be normal or sid)normal. wliih* tlic (>MMung t^Miipciature rangesbetween 103° and 105° F. (Original.) Pathology.—Oslei- slates tliat small (.avities are by no moans rare inchronic pulmonary luhorculosis o\ ihiMivn. but very hirgo excavations arerare; thus in^ vMIT) cases noted by Hartluv, and Sanne there were 7 7 eases 480 THE INFECTIOUS DISEASES. with excavation, chiefly in the upper lobes. In the anal3sis by Leroux ofthe cases of the late Parrot, in 219 children imder 2 years of age,there were 57 instances in which cavities existed. In five of these thechildren were under three months. In long-standing cases hard, firm,fibrous tubercles are found, and sometimes cutaneous nodules. The pri-. Fig. 155,—Chronic Nodular Tuberculous Bronclio-pneumonia, {a, h,c, d) tuberculous foci of variable size and shape, corresponding to the in-filtrated alveolar system.; (e) transverse section through an infiltratedoccluded bronchiole; (f) small arterial branch; (g) group of nodules under-going coalescence; (/t) small unaltered bronchus; (/.) artery. X 6.(Ziegler.) mary lesion in a great majority of instances is a tuberculous broncho-pneumonia, taking its origin in the smaller bronchioles, leading to peri-bronchial nodules and subsequent peribronchial alveolitis. The lesions aresimilar to those met with in tuberculosis of adults—miliary tubercles,peribronchial nodules, caseous blocks, areas of softening and of fibroidinduration, and cavities of various sizes. We do not see so frequently the PULMONARY TC^ f/)STS. 481 invasion of tlie liiii<^- from ilic apex down ward. Tlic cliird scat of dinoanemay be in the central portion of tlu, lnn*i:, or even at tiie base. In tuber-culos
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