In our eagerness to discover tuberculous disease in the so-called incipient stage, we are apt to neglect the study of the symptoms and signs of the chronic forms of phthisis, though it is well known that the prognosis is quite favorable in the majority of the latter class of cases, even though they are designated as "advanced." Indeed, while caring for active cases of pulmonary phthisis we often attribute all the usual and unusual symptoms, the acute and subacute exacerbations and complications to one cause — the tubercle bacillus — and we forget that the lesions produced in the lungs by these bacilli are multifarious, and the prognosis in each is to be formulated by a study of the underlying changes noted in the individual patient. It is a matter of fact that in the vast majority of cases we can ascertain the exact pathologic, and often the etiologic, factors
FISHBERG M. LOCALIZED AND INTERLOBAR PNEUMOTHORAX COMPLICATING PULMONARY TUBERCULOSIS. Arch Intern Med (Chic). 1917;XX(5):739–760. doi:10.1001/archinte.1917.00090050100006
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