Abstract:During a 3-year period, 19 physicians performed 271 transthoracic fine-needle aspirations (FNA) in 199 patients, using a 23-gauge aspiration needle with an 18-gauge guiding needle. The diagnosis was confirmed by cytological examination of the needle aspirates in 90 out of 122 patients with malignant tumors, giving a sensitivity of 74%. The specificity of the cytological diagnosis was 100%. Both cytological and histological material was available in 49 patients. The tumor typing from the FNA specimens and the b… Show more
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