Sclerosing hepatic carcinoma (SHC) is composed of slender cords or small nests of tumor cells with peripheral palisading, and abundant intervening sclerosis. The tumor seems to have the histologic features of both hepatocellular carcinoma (HCC) and cholangiocarcinoma. To evaluate the phenotypic expression of SHC and to investigate its cellular origin, immunohistochemical studies on three cases of SHC were performed. In all cases, the tumor cells showed positive staining for cytokeratins AE1, AE3 and 19, carcinoembryonic antigen (CEA) and epithelial membrane antigen (EMA). The expressions of cytokeratins AE1 and 19 were stronger in the palisading cells than the interior of the cords and nests. Conversely, CEA and EMA were expressed mainly in the inner portion. Alpha-fetoprotein was expressed in only one case, mainly in the palisading cells. In summary, SHC has the histological as well as the immunohistochemical profiles intermediate between HCC and cholangiocarcinoma, and the immunohistochemical profile suggests that SHC arises from primitive hepatoblast with a tendency of differentiation to the bile duct epithelium.
Carcinoma, Hepatocellular

No abstract available.
Enterocolitis, Necrotizing* ; Soy Milk*

This study was performed to investigate the stimulating effect on oocyte maturation and cumulus cell expansion in TC199 media by human cord serum (HCS) supplementation. Immature mouse oocyte cumulus complexes (OCCs) were cultured in TC199 media supplemented with bovine serum albumin (BSA), HCS and human chorionic gonadotropin (hCG) instead of luteinizing hormone (LH) respectively, and the expression of cumulus expansion and oocyte maturation were observed. After 4hr and 24hr culture with or without OCCs, media containing 0.4% BSA, 10% HCS and 10 lU hCG respectively were collected and analyzed for changing concentrations of estradiol (E2), progesterone(P4), testosterone(T), and PGF2. There were no elevation of E2, T, and PGF2 by OCCs culture, but minute elevation of P4 level by 24hr OCCs culture in hCG supplementation (p=0.048). The stimulating pattern of cumulus expansion of OCCs by HCS and hCG supplementation was similar to our previously report using Ham's F-10 media, however oocyte maturation rates after 24hr OCCs culture in all media were increased by 20~30% compared to Ham's F-10 media. These results suggest that LH in HCS induce cumulus expansion probably by P4 secretion of OCCs, and TC199 is efficient media for immature mouse oocyte maturation.
Animals ; Chorionic Gonadotropin ; Cumulus Cells* ; Dinoprost ; Estradiol ; Humans* ; Luteinizing Hormone ; Mice ; Oocytes* ; Serum Albumin, Bovine

No abstract available.
Thyroid Gland* ; Thyroid Nodule*

No abstract available.
Evoked Potentials, Auditory, Brain Stem* ; Rabbits*

No abstract available.
Epinephrine* ; Facial Nerve* ; Paralysis* ; Rabbits*

Kupffer cells are tissue macrophages (histiocytes) fixed in hepatie sinusoids. Since malignant hepatocytes are the only tumor parencymal cells of the hepatocellular carcinoma, theoretically there are no Kupffer cells within the hepatocellular carcinoma. To clarify whether it is true or not, 12 cases of hepatocellular carcinoma of the trabecular type with some extents of the non-neoplastic surrounding liver were subjected to immunoperoxidase staining for lysozyme and S-100 protein and the results are as follows. 1) Kupffer cells were stained positively by the immunoperoxidase staining for lysozyme but not for S-100 protein, indicating that they are monocyte derived macrophages. 2) Kupffer cells were also present within the hepatocellular carcinoma, but were 2-7 times fewer within the hepatocellular carcinoma than in the non-neoplastic areas (p<0.05). 3) The non-neoplastic hepatic tissue of patients with serum HBsAg shows a tendency to have more kupffer cells than those without HBsAg.
Carcinoma, Hepatocellular

It is well known that histologic grade and tumor stage are important prognostic factors, and that the monoclonal antibody to proliferating cell nuclear antigen(PCNA) can recognize S-phase cells. The PCNA index of 53 transitional cell carcinomas(TCCs) of the urinary bladder was studied to evaluate its prognostic validity. The PCNA indices of TCCs ranged from 38 to 92, whih were quite different from that of normal transitional epithelium(9.4). The PCNA indices were significantly higher in tumors of the higher histologic grade and/or tumor stage(correlation coefficient 0.64 and 0.43; P=0.00). The PCNA index was particularly valuable in discriminating the superficial TCCs from the deeply invasive TCCs(67.1+/-15.46 and 79.9+/-9.70; P=0.000). Among TCCs of the same tumor stage, the histologic grade affected the PCNA index. However, TCCs of the same histologic grade revealed similar PCNA indices regardless of tumor stage. These results indicate that the PCNA index is an objective and reliable prognostic factor in TCCs, which is superior to the conventional histologic grade.

Additional two cases of Klinefelter's syndrome with a literatural review was presented Two cases were revealed characteristics of Klinefelter's syndrome such as small testes, hyalinization of seminiferous tubules, azoospermia, increased FSH, normal 17-ketogteroid and positive sex chromatin. One case was associated with left inguinal crytorchidism.
Azoospermia ; Hyalin ; Klinefelter Syndrome* ; Seminiferous Tubules ; Sex Chromatin ; Testis

No abstract available.
Breast Neoplasms* ; Breast*