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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 387 (1980), S. 107-116 
    ISSN: 1432-2307
    Keywords: α-fetoprotein (AFP) ; Carcinoembryonic antigen (CEA) ; Carcinoid (tumor) ; Gastric cancer ; Metastatic liver tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The patient was a 60-year-old Japanese male. He complained of epigastralgia and right chest pain of 4 month's duration, and general malaise, nausea and vomiting of 2 month's duration. Physical examination revealed on the right third rib a tender mass with a diameter of 2 cm and hepatomegaly with a multi-nodular surface and red palms. There were no signs of carcinoid syndrome, such as cutaneous flushing. Laboratory examinations disclosed certain biochemical alterations; alkaline phosphatase 810 IU/l, γ-glutamyl transpeptidase (γ-GTP) 2090 IU/l, carcinoembryonic antigen (CEA) 23.5 ng/ml and α-fetoprotein (AFP) 6,800 ng/ml. Both HBs-Ag and HBs-Ab were negative. The patient died in a uremic state, with rapid increases of jaundice and ascites. Autopsy revealed gastric carcinoid with extensive metastases to the liver and the bone marrow. Tumor cells showed argyrophilia but not argentaffinity. Immunofluorescence specific for AFP was positive in the hepatocytes, particularly those adjacent to the metastatic tumor cells but not in the tumor cells, either primary or secondary. 79 Cases reported in Japan of serum AFP-positive malignant tumor other than hepatocullular carcinoma and certain other malignancies of germ cell origin are reviewed and discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2307
    Keywords: Stereology ; Reinke's crystal ; Leydig cell ; Testis ; Testosterone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Reinke's crystals in human Leydig cells were analyzed stereologically to assess their functional role. Testicular tissues were taken from seven older men (57–82 years old) with prostatic carcinoma and also from seven younger men (26–38 y.o.) complaining of male infertility. Sections 0.5 Μm thick, stained with toluidine blue or Heidenhein's iron-hematoxylin were examined by a point-counting method and with a Particle Measurement Computor System (πMC). When the patients were grouped by age, the mean crystal volume, the number of crystals per cell, the volume of crystals per cell and the volume ratio of crystals to cell were significantly larger in the older age group than in the younger age group. In particular, the latter three variables correlated well with the age of subjects, with correlation coefficients of r=0.66–0.85. On the other hand, none of these variables had any correlation with the concentration of plasma testosterone. These results indicate that Reinke's crystals can be considered as degenerative products in cell life but not as facultative constituents for testosterone production.
    Type of Medium: Electronic Resource
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