Periodic acid-Schiff-lead hematoxylin as a marker for the endocrine phenotype in human lung tumors.


Periodic acid-Schiff-lead hematoxylin is evaluated for light microscopic diagnosis of pulmonary endocrine cell tumors. Twenty-eight aldehyde-fixed primary human lung tumors were examined by electron microscopy. Fifteen were classified as endocrine (one carcinoid, six small-cell carcinomas, and an "atypical" group of eight with diverse histologies), based on… (More)


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