Direct percutaneous needle aspiration of localized pulmonary lesions: result in 422 patients.

摘要: Over a period of 38 months, diagnostic needle aspiration 400 (293 malignant and 107 benign) pulmonary lesions was performed with 20-gauge needles. Deep as well peripheral nodules masses were routinely biopsied. Positive accuracy 96.5%. There 9 (2%) incorrect diagnoses 5 false negatives 4 positives. In almost all patients neoplasms, the specific cell type identifiable. Pneumothorax frequent complication, but there no fatalities, episodes major bleeding or hemoptysis. A new slotted thin wall used in 258 which enabled larger amounts material than had been possible standard needle, approximately 50% patients, enough obtained to perform tissue sections smears for cytology. 77 benign 114 unresectable established diagnosis made it unnecessa...