(1/66) Borrmann's type IV gastric cancer: clinicopathologic analysis.

OBJECTIVE: To determine whether there is a specific pattern of clinicopathological features that could distinguish Borrmann's type IV gastric cancer from other types of gastric cancer. DESIGN: A retrospective study of patients with advanced gastric cancer treated between 1985 and 1995. SETTING: The Department of Surgery, Sendai National Hospital, a 716-bed teaching hospital. PATIENTS: The clinicopathologic features of 88 patients with Borrmann's type IV carcinoma of the stomach were reviewed from the database of gastric cancer. The results were compared with those of 309 patients with other types of gastric carcinoma. MAIN OUTCOME MEASURES: Gender, age, tumour size, depth of invasion, histologic type, cancer-stromal relationship, histologic growth pattern, nodal involvement, lymphatic and vascular invasion, type of operation, cause of death and 5-year survival. RESULTS: Women were afflicted as commonly as men in the Borrmann's type IV group. These patients tended to be younger and to have larger tumours involving the entire stomach than patients with other types of cancer. Histologic type was commonly diffuse and scirrhous, and serosal invasion was prominent with infiltrative growth. Nodal involvement and lymphatic invasion were more common in patients with Borrmann's type IV than in those with other types of gastric cancer. The disease was advanced in most instances and a total gastrectomy was performed in 55% of the patients. The survival rate of patients with Borrmann's type IV tumour was lower than for patients with other types of gastric cancer (p < 0.005, log-rank test). CONCLUSIONS: In Borrmann's type IV gastric cancer, early detection and curative resection are crucial to extend the patient's survival. Aggressive postoperative chemotherapy is recommended when a noncurative resection is performed.  (+info)

(2/66) Scirrhous cancer of the stomach which survived for more than five years after neoadjuvant chemotherapy with UFT (uracil and tegafur) and cisplatin.

A 68-year-old man was diagnosed as having a scirrhous cancer of the stomach. Carcinomatous peritonitis was suspected on abdominal CT examination. Three courses of uracil and tegafur (UFT)/cisplatin (CDDP) chemotherapy were administered. The primary foci were reduced in size, then total gastrectomy was performed. Histological findings revealed a poorly differentiated adenocarcinoma with scirrhous invasion into the subserosa. Histological efficacy of the chemotherapy was judged to be grade 2. The patient has been alive without disease for more than five years after total gastrectomy. Neoadjuvant chemotherapy with UFT and CDDP may have contributed to the favorable clinical outcome in this patient.  (+info)

(3/66) Differential gene expression profiles of scirrhous gastric cancer cells with high metastatic potential to peritoneum or lymph nodes.

Scirrhous gastric cancer is often accompanied by metastasis to the peritoneum and/or lymph nodes, resulting in the highest mortality rate among gastric cancers. Mechanisms involved in gastric cancer metastasis are not fully clarified because metastasis involves multiple steps and requires the accumulation of altered expression of many different genes. Thus, independent analysis of any single gene would be insufficient to understand all of the aspects of gastric cancer metastasis. In this study, we performed global analysis on differential gene expression of a scirrhous gastric cancer cell line (OCUM-2M) and its derivative sublines with high potential for metastasis to the peritoneal cavity (OCUM-2MD3) and lymph nodes (OCUM-2MLN) in a nude mice model. By applying a high-density oligonucleotide array method, expression of approximately 6800 genes was analyzed, and selected genes were confirmed by the Northern blot method. In our observations in OCUM-2MD3 cells, 12 genes were up-regulated, and 20 genes were down-regulated. In OCUM-2MLN cells, five genes were up-regulated, and five genes were down-regulated. The analysis revealed two functional gene clusters with altered expression: (a) down-regulation of a cluster of squamous cell differentiation marker genes such as small proline-rich proteins [SPRRs (SPRR1A, SPRR1B, and SPRR2A], annexin A1, epithelial membrane protein 1, cellular retinoic acid-binding protein 2, and mesothelin in OCUM-2MD3 cells; and (b) up-regulation of a cluster of antigen-presenting genes such as MHC class II (DP, DR, and DM) and invariant chain (II) in OCUM-2MLN cells through up-regulation of CIITA (MHC class II transactivator). We then analyzed six gastric cancer cell lines by Northern blot and observed preferential up-regulation of trefoil factor 1, alpha-1-antitrypsin, and galectin 4 and down-regulation of cytidine deaminase in cells prone to peritoneal dissemination. Genes highly correlated with invasion or peritoneal dissemination of gastric cancer, such as E-cadherin or integrin beta4, were down-regulated in both of the derivative cell lines analyzed in this study. This is the first demonstration of global gene expression analysis of gastric cancer cells with different metastatic potentials, and these results provide a new insight in the study of human gastric cancer metastasis.  (+info)

(4/66) Invasion activating caveolin-1 mutation in human scirrhous breast cancers.

We looked for mutations in the caveolin-1 gene, encoding a critical molecule for membrane signaling to cell growth, in 92 primary human breast cancers, and we report here the identification of a mutation in caveolin-1 at codon 132 (P132L) in 16% of cases. The mutation-positive cases were mostly invasive scirrhous carcinomas. In cell lines expressing the same mutant of caveolin-1, we observed that the mutant Caveolin-1 expression seemed to induce cellular transformation and activation of mitogen-activated protein kinase-signaling pathway and to promote invasion-ability as well as altered actin networks in the cells. These results provide, for the first time, genetic evidence that a functioning Caveolin-1 mutation may have a role in the malignant progression of human breast cancer.  (+info)

(5/66) Intestinal perforation due to metastasis of breast carcinoma, with special reference to chemotherapy: a case report.

We report a case of small-bowel perforation due to metastatic carcinoma of the breast during chemotherapy. Partial resection of the small intestine and primary anastomosis were performed. Although the patient made a good recovery from panperitonitis, she died of the disease on the 55th postoperative day. Since perforation during chemotherapy results in an extremely poor prognosis, special caution during chemotherapy is needed for patients with possible gastrointestinal involvement with tumor.  (+info)

(6/66) A novel variant of WISP1 lacking a Von Willebrand type C module overexpressed in scirrhous gastric carcinoma.

Scirrhous carcinoma of the stomach is characterized by rapid growth with a vast fibrous stroma, high invasiveness, and substantially a poor prognosis. Little is known of the molecular pathogenesis of this disease. Members of the emerging family of the CCN gene (for connective tissue growth factor, cysteine-rich 61, nephroblastoma overexpressed) encode cysteine-rich secreted proteins with roles in human fibrotic disorders and cancer progression. Using targeted differential displays, we identified a novel variant of the CCN family member WISP1 (Wnt-induced secreted protein 1), named WISP1v, as overexpressed in scirrhous gastric carcinomas. Predicted protein of the WISP1v completely lacks a module of Von Willebrand type C that is thought to participate in protein complex formation. Ectopic expression revealed WISP1v to be a secreted oncoprotein inducing a striking cellular transformation and rapid piling-up growth. It is noteworthy that WISP1v transfectants enhanced the invasive phenotype of co-cultured gastric carcinoma cells, while wild-type WISP1 had no such potential. These findings suggest that CCN protein WISP1v is involved in the aggressive progression of scirrhous gastric carcinoma.  (+info)

(7/66) Detection method and breast carcinoma histology.

BACKGROUND: The association between method of detection and breast carcinoma histopathology has not been assessed adequately in a population-based setting. METHODS: Among women who were included in a population-based, case-control study of breast cancer, patients who were newly diagnosed with invasive breast carcinoma were identified from Wisconsin's statewide tumor registry. Only women age > or = 50 years were analyzed, because screening by mammography was not recommended before age 50 years at the time of the study. The breast tumors among these women (n = 2341 tumors) included the following histopathologies: lobular carcinoma (n = 206 tumors); ductal carcinoma, not otherwise specified (n = 1920 tumors); papillary carcinoma (n = 15 tumors); medullary carcinoma (n = 36 tumors); mucinous adenocarcinoma (n = 56 tumors); tubular adenocarcinoma (n = 41 tumors); invasive comedocarcinoma (n = 24 tumors); scirrhous adenocarcinoma (n = 15 tumors); and mixed ductal/lobular carcinoma (n = 28 tumors). RESULTS: Overall, women reported that 41% of tumors were detected by mammography, 48% of tumors were self detected, and 11% of tumors were detected by clinical breast examination (CBE). Detection by mammography was significantly more likely for women who had tubular carcinoma (83%; P < 0.001) and invasive comedocarcinoma (67%; P = 0.23) compared with women who had ductal carcinoma (40%). Mammography was significantly less likely to detect medullary carcinoma (17%) than ductal carcinoma (40%; P = 0.01). Lobular carcinoma was the only histopathology that, compared with ductal carcinoma, was detected significantly more often by CBE than by self detection. Mammography detected lobular carcinoma (42%) as frequently as ductal carcinoma (40%). However, the use of postmenopausal hormones may have modified these detection patterns: Among current users, mammography discovered a greater percentage of ductal carcinomas (51%) and fewer lobular carcinomas (36%) than nonusers. CONCLUSIONS: Among women age > or = 50 years, breast cancer detection by mammography, self detection, and CBE varied according to tumor histopathology.  (+info)

(8/66) Scirrhous gastric carcinoma with mediastinal invasion in a dog.

An 8-year-old male Rottweiler was presented for recurrent episodes of dysphagia and vomiting with chronic weight loss. Radiography revealed a mediastinal mass in the heart base region. Necropsy revealed a firm, white mediastinal mass extending along the distal esophagus, through the diaphragm, to the gastric cardia, leftward to the convex visceral aspect of the fundus, and rightward along the lesser curvature of the stomach to the pyloric antrum. The gastric lymph node was enlarged and the omentum contained several nodules. Histologically, deep fundic mucosa contained pleomorphic, vacuolated cells with intracytoplasmic mucin, which was hyaluronidase resistant. Neoplastic cells were cytokeratin positive and vimentin negative. Transmural invasion was evidenced by the presence of cytokeratin-positive cells between smooth muscle bundles of the gastric wall. The mediastinal mass was composed of clusters of neoplastic cells in a stroma of dense and loose connective tissue. Neoplastic cells were also within blood and lymphatic vessels, tracheobronchial and gastric lymph nodes, and around peripheral nerves. This carcinoma most likely arose from the gastric fundus and extended to the cardia, from where it advanced proximally to the mediastinum as well as further rightward along the lesser curvature, demonstrating an anatomic continuity suggestive of a direct invasion. Metastasis, evidenced by the presence of lymphatic, blood, and perineural tumor emboli, also occurred.  (+info)

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