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1.
TAKENOBU KAMADA M.D. HIDEYUKI FUSAMOTO M.D. MANABU MASUZAWA M.D. KOITCHI HIRAMATSU M.D. OSAMU FUKUI M.D. † 《The American journal of gastroenterology》1975,63(6):486-489
The clinical, endoscopic and histological findings of 14 cases with unusual gigantic ulcers of the stomach were reported. The patients were mainly aged, complicated by cardiovascular diseases. The ulcer was designated as "trench ulcer" from the characteristic endoscopic features, which ran from the cardiac portion to the angle along the lesser curvature. 相似文献
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SATOSHI ANDO TORU SHIMAZUI KAZUNORI HATTORI TAKAHIRO YAMAMOTO KEN KURIYAGAWA HIDEYUKI AKAZA 《International journal of urology》2006,13(12):1539-1541
Splenogonadal fusion is a rare congenital anomaly. We report herein a case of splenogonadal fusion associated with contra lateral testicular aplasia, and review the etiology, pathogenesis and management of this rare disease. As far as we know, this is the first reported case of splenogonadal fusion associated with testicular aplasia. 相似文献
4.
NORIKO IKEDA ICHIRO TOIDA AKIO IWASAKI KOJI KAWAI HIDEYUKI AKAZA 《International journal of urology》2002,9(1):29-35
BACKGROUND: The antitumor mechanisms of bacillus Calmette-Guérin (BCG) against bladder cancer is still unclear. We previously reported that BCG was internalized by and survived within murine bladder tumor cells (MBT-2) for at least 40 days. In the present study, we investigated the effect of BCG on the surface antigen expression of bladder tumor cells and the characteristics of these cells as antigen-presenting cells in vitro. METHODS: Surface antigen (major histocompatibility complex (MHC) Class II, CD1, CD80 and intercellular adhesion molecule-1 (ICAM-1)) expression on BCG-treated murine (MBT-2) and human (T-24, J82) bladder tumor cells were analyzed using flow cytometry. The production of interleukin-2 (IL-2) and interferon-gamma (IFN-gamma) from murine lymphocytes sensitized with BCG or BCG-treated tumor cells were also investigated. RESULTS: The expressions of MHC Class II, CD1, CD80 and ICAM-1 were augmented in all of the bladder tumor cell lines used; however, they were augmented to varying degrees among the cell lines that were treated with live BCG. Heat-killed BCG had little or no effect. When murine lymph node cells sensitized with BCG or BCG-treated MBT-2 cells were cocultured with BCG-treated MBT-2 cells, significant amounts of IL-2 and IFN-gamma were produced in the culture medium. CONCLUSIONS: BCG induced the augmented expression of surface antigens, such as MHC Class II, CD1, CD80 and ICAM-1, of bladder tumor cells. Furthermore, BCG-treated MBT-2 cells could stimulate BCG-sensitized lymphocytes to produce IL-2 and IFN-gamma. These results strongly suggest that bladder tumor cells gained the characteristics and functions of antigen-presenting cells (APC). 相似文献
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Intraoperative transesophageal echocardiography for inferior vena caval tumor thrombus in renal cell carcinoma 总被引:1,自引:0,他引:1
TAKEHIRO OIKAWA TORU SHIMAZUI AKIRA JOHRAKU SHINICHI KIHARA SADAMU TSUKAMOTO NAOTO MIYANAGA KAZUNORI HATTORI KOJI KAWAI KATSUNORI UCHIDA HITOSHI TAKESHIMA SHIGEYUKI SAITO HIDENORI TOYOOKA HIDEYUKI AKAZA 《International journal of urology》2004,11(4):189-192
BACKGROUND: We investigated the advantages of intraoperative transesophageal echocardiography (TEE) during inferior vena caval tumor thrombectomy in renal cell carcinoma (RCC). METHODS: Five patients with RCC that extended into the inferior vena cava (IVC) underwent radical nephrectomy. To remove the tumor thrombus in the IVC, an inflated Fogarty balloon catheter was used to pull the thrombus below the level of the hepatic veins with real-time TEE monitoring. RESULTS: In all cases, TEE monitoring during surgery provided an accurate and excellent view of the IVC thrombus. TEE was particularly helpful for the thrombectomy to minimize hepatic mobilization by using occlusion balloon catheter in two patients whose thrombus extended to the intrahepatic IVC. CONCLUSIONS: Intraoperative real-time TEE monitoring is a safe, minimally invasive technique that can provide accurate information regarding the presence and extent of IVC involvement, guidance for placement of a vena caval clamp, confirmation of complete removal of the IVC thrombus and intervention using catheters to assist in thrombectomy. 相似文献
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Clinical parameters that predict histology of postchemotherapy retroperitoneal lymph node mass in testicular cancer 总被引:2,自引:0,他引:2
MIZUKI ONOZAWA KOJI KAWAI TAKAHIRO YAMAMOTO SHIRO HINOTSU SADAMU TSUKAMOTO KAZUNORI HATTORI NAOTO MIYANAGA TORU SHIMAZUI HIDEYUKI AKAZA 《International journal of urology》2004,11(7):535-541
BACKGROUND: Since the advent of cisplatin-based chemotherapy, the majority of metastatic testicular cancers can be cured by chemotherapy followed by retroperitoneal lymph node dissection (RPLND). However, postchemotherapy RPLND confers no therapeutic benefit if the residual mass contains no viable cells. Therefore, to determine which parameters predict a patient's likelihood of having only necrosis in the residual mass, we retrospectively analyzed clinical parameters of patients who underwent postchemotherapy RPLND. METHODS: Data from 27 patients with metastatic testicular cancer were analyzed. The histology of the primary tumor was seminoma in 11 cases and non-seminoma in 16 cases. All of the patients with non-seminoma showed a normalization of tumor markers after chemotherapy. Analysis of clinical parameters included data for the initial histology, pretreatment tumor marker levels, postchemotherapy retroperitoneal mass size, and the histology of the dissected RPLNs. RESULTS: Histological examination of dissected RPLNs showed residual tumor in 27% of seminoma patients and 38% of non-seminoma patients. In seminoma patients, no viable cells were found in all six patients with pretreatment lactate dehydrogenase (LDH) levels below 7.5 times the upper limit of normal, or in all five of the patients with postchemotherapy RPLNs less than 2.5 cm. In non-seminoma patients, no viable cells were found in nine of 10 patients with pretreatment alpha-fetoprotein (AFP) levels less than 2700 ng/mL, or in eight of nine patients with residual mass less than 2.5 cm. CONCLUSIONS: Both postchemotherapy RPLN mass size and pretreatment tumor marker levels are possible predictors for necrosis of the residual mass in testicular cancer patients. 相似文献
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KOJI KAWAI TAKAHIRO KOJIMA NAOTO MIYANAGA KAZUNORI HATTORI SHIRO HINOTSU TORU SHIMAZUI HIDEYUKI AKAZA 《International journal of urology》2005,12(3):284-289
BACKGROUND: Lens culinaris agglutin (LCA)-affinity electrophoresis resolves serum alpha-fetoprotein (AFP) into three isoforms, AFP-L1, -L2 and -L3. The ratio of AFP-L3 to total AFP (AFP-L3%) is frequently high in hepatocellular carcinoma (HCC) patients, and thus, it is widely used for early diagnosis of HCC. In the present study, we used the subfraction profile of LCA-binding AFP to diagnose and monitor testicular tumor activity. METHODS: Serum samples were collected from 21 testicular tumor patients, and the LCA-reactive fractions were determined by LCA-affinity electrophoresis coupled with antibody-affinity blotting. The histological diagnosis was non-seminomatous germ cell tumor (NSGCT) in 15 patients and pure seminoma in six patients. RESULTS: Serum AFP levels were abnormally elevated (>20 ng/mL) in 10 of 15 NSGCT patients. One NSGCT patient and two seminoma patients showed borderline AFP levels between 10 and 20 ng/mL. LCA-reactive AFP was detected in all 11 NSGCT patients with serum AFP levels above 10 ng/mL, but not in the two seminoma patients with serum AFP levels above 10 ng/mL. In testicular tumor patients, the broad band of AFP-L2 could not be completely separated from AFP-L3. The mean ratio of AFP-L3 plus AFP-L2 (AFP-L2 + 3%) was as high as 94% (range 80-99%) in these patients. Serial determinations of LCA-reactive fractions were performed in eight of the 11 LCA-reactive AFP-positive patients. They included five patients who received chemotherapy, and three patients who underwent orchiectomy for stage I NSGCT. In three of eight patients, LCA-reactive AFP was detected even after normalization of total AFP levels. All three patients relapsed, with elevation of serum AFP within several months. CONCLUSION: Determination of LCA-reactive AFP might be a useful marker for testicular tumor activity in patients with lower AFP levels. 相似文献
8.
HIROMU INAI KOJI KAWAI YUKIO MORISHITA MICHIO NAGATA MASAYUKI NOGUCHI HIDEYUKI AKAZA 《International journal of urology》2005,12(8):765-767
A 22-year-old man was diagnosed with retroperitoneal seminoma associated with Klinefelter's syndrome. The tumor was 14 x 12 cm in size and surrounded the superior mesenteric artery. He received induction chemotherapy with bleomycin, etoposide and cisplatin (BEP) followed by salvage chemotherapy with paclitaxel, ifosfamide and cisplatin (TIP). The tumor considerably decreased in size and remains as a poorly defined plaque. At the time of writing, he is being followed closely and is free from progression. 相似文献
9.
YUKIO HOMMA HIDEYUKI AKAZA KIYOKI OKADA MASAO YOKOYAMA MICHIYUKI USAMI YOSHIHIKO HIRAO TOMOYASU TSUSHIMA ATSUHIKO SAKAMOTO YASUO OHASHI YOSHIO ASO THE PROSTATE CANCER STUDY GROUP 《International journal of urology》2004,11(4):218-224
BACKGROUND: We retrospectively compared the 5-year survival rates of T1b-T3N0M0 prostate cancer patients treated either by endocrine therapy plus radical prostatectomy or endocrine therapy alone. METHODS: Clinical T1b-T3N0M0 prostate cancer patients were enrolled at 104 institutions in Japan. They were assigned to study 1 (n = 176), if they were indicated to prostatectomy, if not indicated, they were assigned to study 2 (n = 151). The indication of prostatectomy was based on the clinical judgement of physicians and/or patients. Those assigned to study 1 underwent prostatectomy and adjuvant endocrine therapy with or without preoperative androgen deprivation. Those assigned to study 2 were treated with leuprorelin acetate with or without chlormadinone acetate. They were followed-up every 3 months until death or for 5 years and over. RESULTS: Those assigned to study 1 were younger (mean age 67.2 vs 75.7 years), less advanced in clinical stage, and had lower prostate specific antigen levels (mean 43.8 vs 103.6 ng/mL). Death for any reason was observed less frequently in study 1 (n = 29, 16%) than study 2 (n = 50, 33%), and the 5-year overall survival rate was higher in study 1 (87 vs. 68%). However, prostate cancer deaths were comparatively seldom (9% in study 1 and 7% in study 2), resulting in the identical 5-year cause specific survival rate in both study groups (91%). In both study groups the overall survival was almost equal to the natural survival of age-matched men. CONCLUSIONS: Endocrine therapy offers a reasonable survival rate in T1b-T3 prostate cancer patients within a 5-year follow-up. Observation will be extended to determine 10-year outcomes. 相似文献
10.
Five years experience of transrectal high-intensity focused ultrasound using the Sonablate device in the treatment of localized prostate cancer 总被引:3,自引:0,他引:3
TOYOAKI UCHIDA HIROSHI OHKUSA HIDEYUKI YAMASHITA SUNAO SHOJI YOSHIHIRO NAGATA TORU HYODO TAKEFUMI SATOH 《International journal of urology》2006,13(3):228-233
BACKGROUND: High-intensity focused ultrasound (HIFU) is a minimally invasive technique used in achieve coagulation necrosis. We evaluated biochemical disease-free survival rates, predictors of clinical outcome and morbidity in patients with localized prostate cancer treated with HIFU. METHODS: A total of 181 consecutive patients underwent HIFU with the use of Sonablate (Focus Surgery, Indianapolis, IN, USA). Biochemical recurrence was defined according to the criteria recommended by the American Society for Therapeutic Radiology and Oncology Consensus Panel. The median age and pretreatment prostate-specific antigen (PSA) level were 70 years (range 44-88) and 9.76 ng/mL (range 3.39-89.60). A total of 95 patients (52%) were treated with neoadjuvant hormones. The median follow-up period for all patients was 18.0 months (range 4-68). RESULTS: The biochemical disease-free survival rates at 1, 3 and 5 years in all patients were 84%, 80% and 78%, respectively. The biochemical disease-free survival rates at 3 years for patients with pretreatment PSA less than 10 ng/mL, 10.01-20.0 ng/mL and more than 20.0 ng/mL were 94%, 75% and 35%, respectively (P<0.0001). Multivariate analysis identified pretreatment PSA (P<0.0001) as a independent predictor of relapse. CONCLUSION: High-intensity focused ultrasound therapy appears to be a safe and efficacious minimally invasive therapy for patients with localized prostate cancer, especially those with a pretreatment PSA level less than 20 ng/mL. 相似文献