. Journal of radiology . e it will give signs whichmay be detected by the stetho- scope. This air cell congestionis pathognomonic of activity andis to the roentgenologist thesame as the rale to the earlier changes are not in-fallible. This description is char-acteristic of some chronic infec-tion, notably tuberculosis, ratherthan some very acute processwhere a whole lobe is over-whelmed in a few hours. In anadvanced case of tuberculosis, wecan find similar areas where theprocess is just making its be-ginning. To make the statement thatthere is interweaving of theterminal bronchi
. Journal of radiology . e it will give signs whichmay be detected by the stetho- scope. This air cell congestionis pathognomonic of activity andis to the roentgenologist thesame as the rale to the earlier changes are not in-fallible. This description is char-acteristic of some chronic infec-tion, notably tuberculosis, ratherthan some very acute processwhere a whole lobe is over-whelmed in a few hours. In anadvanced case of tuberculosis, wecan find similar areas where theprocess is just making its be-ginning. To make the statement thatthere is interweaving of theterminal bronchi is insufficient,a? we may have this as an ex-tension from the hilum in bron-chiectasis. In cardiac diseases,dust and chemical inhalation,chronic pneumonitis and tumer-ous growths, we have similarprocesses to differentiate. Here,however, the general picture willusually give the key to the diag-nosis. Our final consideration is thevalue, if any, of this minutestudy of the lung structure to theinternist. I have asked Doctor.
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