The diseases of infants and children . an involve-ment of the pulmonary parenchyma of the hilus-region (Stoll andHeublein).^ The condition runs the chronic course of tuberculosis of thetracheo-bronchial glands. (7) Primary Pulmonary Foci of Ghon.—The name of Ghon^ is com-monly associated with these lesions, although they were earlier describedby others. They consist of small, round foci from that of a millet seed lAmer. Jour. Med. Sci., 1914, CXLVIII, 382. 2 Der primJire Lungenherd bei der Tuberkulose der Kinder, 1912. TUBERCULOSIS 555 to that of a hazelnut or even larger in size (Albrecht).^
The diseases of infants and children . an involve-ment of the pulmonary parenchyma of the hilus-region (Stoll andHeublein).^ The condition runs the chronic course of tuberculosis of thetracheo-bronchial glands. (7) Primary Pulmonary Foci of Ghon.—The name of Ghon^ is com-monly associated with these lesions, although they were earlier describedby others. They consist of small, round foci from that of a millet seed lAmer. Jour. Med. Sci., 1914, CXLVIII, 382. 2 Der primJire Lungenherd bei der Tuberkulose der Kinder, 1912. TUBERCULOSIS 555 to that of a hazelnut or even larger in size (Albrecht).^ They are gen-erally single or but few in number and are situated in different parts ofone or both lungs. The lesions represent the seat of primary pulmonaryinvolvement. Any portion of the lung may be attacked, although thereis a somewhat greater disposition to involve the upper lobe. They mayoccur at any period of early life, but with diminishing frequency as in-fancy is past. The lesions may become caseous, calcified, or shrunken,. Fig. 181.—Radiograph of Tuberculosis of the Bronchial Glands and of the Hilus OF the ray-like shadows indicate the infiltration along the course of the bronchial tubes. and may continue for an indefinite time without the production of symp-toms, although the neighboring lymphatic glands are always secondarilyinvolved. The condition in this form is of importance only as indicatingthe primary source of the extension of tuberculosis which later sometimestakes place. Following another course, and with increasing fre(iucncy in propor-tion to the youth of the patient, the foci instead of becoming doiinantremain moderately active, the child exhil)iting irregular or no fever,debility, loss of weight and a chronic cough; physical signs being » Wien. klin. Wochcnschr., 1909, XXII, 327. 556 THE DISEASES OF CHILDREN * absent except perhaps some scattered rales. The tuberculin-reaction ispositive and in some cases tubercle-bacilli may be found in
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