Zinc, copper, and iron content of pleural fluid in benign and neoplastic disease

AUTOR(ES)
RESUMO

Zinc, copper, and iron were measured in the pleural fluid of 86 patients with benign conditions (including congestive heart failure, pulmonary embolus, collagen disease, pneumonitis, non-specific pleuritis, and tuberculosis) and in 116 patients with malignant disease (including lymphoma, breast carcinoma, primary lung cancer, and metastatic lung cancer). Though a positive correlation was found between zinc and copper in the benign group and not in the malignant group, the test was not specific enough to differentiate benign from malignant disease, because of the wide scatter of results.

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