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101.
Yamamoto H Ito Y Hayashi T Urano N Kato T Kimura Y Tanigawa T Endo W Kurokawa E Kikkawa N Taniguchi H 《Breast cancer (Tokyo, Japan)》2001,8(3):229-233
We report an 82-year-old Japanese woman with basal cell carcinoma of the left nipple and areola extending into the lactiferous duct. The patient developed a small papular lesion of the left areola about 1 year before admission. The lesion, which had slowly progressed to involve the nipple, had become symptomatic showing weeping and bleeding. Mammography revealed microcalcification in the nipple. Although Paget's disease was suspected from these clinical features, histologically basal cell carcinoma was diagnosed. There was no axillary lymphadenopathy, and no evidence of distant metastasis. The lesion of the nipple and areola was resected with a 2 cm free margin along with the underlying mammary tissue. The patient has remained well without signs of recurrence for 2 years after surgery. We reviewed cases of basal cell carcinoma of the nipple or areola and discuss considerations and problems of this rare tumor. 相似文献
102.
To determine the biological role of caudal-like homeobox gene CDX2, we constructed knockout mice in which its mouse homologue Cdx2 was inactivated by homologous recombination, placing a bacterial lacZ gene under the control of the Cdx2 promoter. Although the homozygous mutants died in utero around implantation, the heterozygotes were viable and fertile and expressed lacZ in the caudal region in early embryos and in the gut tissues in adults. The heterozygotes developed cecal and colonic villi by anteriorization and formed hamartomatous polyps in the proximal colon. The hamartoma started to develop at 11.5 days of gestation as an outpocket of the gut epithelium, which ceased to express the remaining Cdx2 allele. The outpocket then expanded as a partially duplicated gut but was contained as a hamartoma after birth. In adult mice, these hamartomas grew very slowly and took a benign course. None of them progressed into invasive adenocarcinomas, even at 1.5 years of age. Whereas the cecal and colonic villi expressed lacZ, the hamartoma epithelium did not, nor did it express Cdx2 mRNA from the wild-type allele. However, genomic DNA analysis of the polyp epithelium did not show a loss of heterozygosity of the Cdx2 gene, suggesting a mechanism of biallelic Cdx2 inactivation other than loss of heterozygosity. These results indicate that the Cdx2 haploin-sufficiency caused cecal and colonic villi, whereas the biallelic inactivation of Cdx2 triggered anomalous duplications of the embryonic gut epithelium, which were contained as hamartomas after birth. 相似文献
103.
Gastric and duodenal polyps in Smad4 (Dpc4) knockout mice 总被引:12,自引:0,他引:12
The SMAD4 (DPC4) gene was initially isolated as a candidate tumor suppressor from the convergent site of homozygous deletions on 18q in a panel of pancreatic carcinoma cell lines. It encodes a common cytoplasmic signaling molecule shared by the transforming growth factor-beta, activin, and bone morphogenic pathways. We recently inactivated its mouse homologue Smad4 and demonstrated its role in the malignant progression of benign adenomas to invasive adenocarcinomas by analyzing mice with Apc and Smad4 compound mutations. Although simple Smad4 homozygotes were embryonically lethal, the heterozygotes were fertile and appeared normal up to the age of 1 year. Upon further investigation, however, they have developed inflammatory polyps in the glandular stomach and duodenum. By PCR genotyping and immunohistochemical staining, the wild-type Smad4 allele has been lost in the polyp epithelial cells, ie., loss of heterozygosity. On the other hand, we have not found any mutations in such genes as K-Ras, H-Ras, N-Ras, p53, or PTEN. Histologically, the polyps are similar to human juvenile polyps showing moderate stromal cell proliferation and infiltrations by eosinophils and plasma cells. In addition, foci of adenocarcinoma with signet ring cells are also found. These results are consistent with a recent report that germ-line SMAD4 mutations are found in a subset of familial juvenile polyposis. 相似文献
104.
105.
Cai-De Lu Shu-You Peng Xien-Chuan Jiang Yukio Chiba Nobuhiko Tanigawa 《World journal of surgery》1999,23(3):293-300
1 (n= 24) and B1 (n= 57), and those with tumors > 8 cm were assigned to groups A2 (n= 20) and B2 (n= 19), respectively. Although no significant differences in survival between groups A1 and B1 were found, group A2 presented superior 1-, 2-, and 3-year tumor-free survival rates of 80%, 55%, and 32% and 1-, 3-, and 5-year cumulative survival
rates of 90%, 53%, and 42%. These figures are in comparison with the tumor-free survival rates of 50%, 22%, and 11% (p= 0.06), and the cumulative survival rates of 72%, 33%, and 11% (p= 0.01) during the same periods for group B2, respectively. The Cox regression model revealed that for patients with tumors > 8 cm, the relative risk of preoperative
TAE for overall survival was 0.38 (p= 0.017), indicating that preoperative TAE might benefit patients with tumors > 8 cm but not those with tumors 2 to 8 cm. 相似文献
106.
N Tanigawa T Shimomatsuya K Takahashi Y Inomata K Tanaka K Satomura Y Hikasa M Hashida S Muranishi H Sezaki 《Cancer》1987,60(4):741-749
Of the several types of treatment for cystic hygromas and lymphangiomas, surgical excision has been the preferred treatment. However, there is a high recurrence rate because lymphangiomas tend to infiltrate the surrounding tissues. Bleomycin in a microsphere-in-oil (S/O) emulsion was used in this study as a sclerosing agent for lymphangiomas. Experimental studies using domestic rabbits showed that the bleomycin emulsion caused more marked fibrotic changes at the injection site than other formulations, such as a blank emulsion and bleomycin solution. In clinical trials, 27 of 33 patients received bleomycin S/O emulsion injected directly into the tumors with satisfactory results. Histologic pictures of the clinically resected specimens confirmed the findings of the experimental studies. Comparative studies of treatments between bleomycin S/O emulsion and surgery indicated that injection therapy of bleomycin S/O emulsion would be more beneficial than surgical excisions. 相似文献
107.
Efficacy of a concomitant elemental diet to reduce the loss of response to adalimumab in patients with intractable Crohn's disease
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Naoko Sugita Kenji Watanabe Noriko Kamata Tomomi Yukawa Koji Otani Shuhei Hosomi Yasuaki Nagami Fumio Tanaka Koichi Taira Hirokazu Yamagami Tetsuya Tanigawa Masatsugu Shiba Toshio Watanabe Kazunari Tominaga Daijiro Kabata Ayumi Shintani Tetsuo Arakawa Yasuhiro Fujiwara 《Journal of gastroenterology and hepatology》2018,33(3):631-637
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