Scalene node biopsy; an analysis of 42 cases.

Scalene node biopsy was done in 42 patients with previously undiagnosed intrathoracic lesions. A definite histologic diagnosis was obtained in 25 patients. Scalene node biopsy is not only a valuable diagnostic procedure for intrathoracic lesions, but many times it may obviate the necessity of exploratory thoracotomy. If a diagnosis of carcinoma of lung is established by scalene node biopsy, the operability of the patient and the type of pulmonary resection should be carefully evaluated.