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Ultrastructural and histochemical studies were done on a rare case of primary melanosis of the dentate nucleus. The coexistence of extraneuronal neuromelanin and glial lipofuscin in that region was observed and the interconvertability of these two pigments is suggested.
Sixteen normal individuals and 100 hospital patients, all black, were tested for abnormal carcinoembryonic antigen (CEA) levels. Male and female subjects (smokers and non-smokers) were tested. The results of the tests are discussed. For normal subjects, the CEA values ranged from 0.0 ng/ml to 2.6 ng/ml. Among hospital patients with neoplastic disease, male… (More)