SCINCE its introduction by Daniels1 in 1949 the technic of prescalene-lymph-node biopsy has gained favor as a means of studying intrathoracic disease. The simplicity of the method has permitted its application in patients whose clinical condition is poor. However, questions have arisen regarding both its diagnostic value and its prognostic significance. The purpose of this report is to review 153 consecutive biopsies from these aspects. An attempt has been made not only to determine the frequency of positive diagnoses established by the procedure but also to assess the prognostic significance of the negative biopsies. In addition, the percentage of positive . . .
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Wilson et al. (1958) studied this question.
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