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Träfflista för sökning "hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Cancer och onkologi) srt2:(2000-2004)"

Sökning: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Cancer och onkologi) > (2000-2004)

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21.
22.
  • Smeland, S, et al. (författare)
  • Scandinavian Sarcoma Group Osteosarcoma Study SSG VIII: prognostic factors for outcome and the role of replacement salvage chemotherapy for poor histological responders
  • 2003
  • Ingår i: European Journal of Cancer. - Elsevier. - 1879-0852. ; 39:4, s. 488-494
  • Tidskriftsartikel (refereegranskat)abstract
    • From 1990 to 1997, 113 eligible patients with classical osteosarcoma received neo-adjuvant chemotherapy consisting of high-dose methotrexate, cisplatin and doxorubicin. Good histological responders continued to receive the same therapy postoperatively, while poor responders received salvage therapy with an etoposide/ifosfamide combination. With a median follow-up of 83 months, the projected metastasis-free and overall survival rates at 5 years are 63 and 74%, respectively. Independent favourable prognostic factors for outcome were tumour volume < 190 ml, 24-h serum methotrexate > 4.5 muM and female gender. The etoposide/ifosfamide replacement combination did not improve outcome in the poor histological responders. In conclusion, this intensive multi-agent chemotherapy results in > 70% of patients with classical osteosarcoma surviving for 5 years. The data obtained from this non-randomised study do not support discontinuation and exchange of all drugs used preoperatively in histological poor responders. As observed in previous Scandinavian osteosarcoma studies, female gender appears to be a strong predictor of a favourable outcome. (C) 2003 Elsevier Science Ltd. All rights reserved.
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23.
24.
  • Jahnson, Staffan, et al. (författare)
  • Tumor mapping of regional immunostaining for p21, p53, and mdm2 in locally advanced bladder carcinoma
  • 2000
  • Ingår i: Cancer. - New York, USA : John Wiley & Sons. - 0008-543X .- 1097-0142. ; 89:3, s. 619-629
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background: The aim of this study was to elucidate the associations among immunostaining for p53, p21, and mdm2; their respective expression within each tumor; and the value of these variables for predicting treatment outcome after cystectomy for patients with locally advanced bladder carcinoma.</p><p>Methods: The hospital records from all 173 patients treated with cystectomy for locally advanced urothelial bladder carcinoma between 1967 and 1992 were retrospectively reviewed. Three consecutive sections from biopsies taken before any treatment were stained using the standard immunohistochemical technique for p53, p21, and mdm2, respectively. The cutoff limit was 20% or more for positive p53 expression and 10% or more for positive p21 and mdm2 expression.</p><p>Results: Positive immunostaining was observed for p53 in 98 tumors (57%), for p21 in 89 tumors (51%), and for mdm2 in only 16 tumors (9%). The only association found between immunostaining for the three antibodies was that most mdm2-positive tumors had positive p21 expression. Tumor mapping of regional immunostaining showed no association between immunostaining for p53 and p21. In a proportional hazards analysis, no association was found between the results of immunostaining for the three antibodies and treatment outcome.</p><p>Conclusions: Positive or negative expression of p53, p21, or mdm2, or combinations of these, was not associated with cancer specific mortality after cystectomy for bladder carcinoma. There was no association between immunostaining for p21 and p53, whereas positive immunostaining for mdm2 was observed in a minority of the tumors. These results indicate that, in addition to p21, p53, and mdm2, there are other oncoproteins and tumor suppressor proteins along the p53 pathway that are involved in tumor development and progression.</p>
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25.
  • Brun, Eva, et al. (författare)
  • FDG PET studies during treatment: Prediction of therapy outcome in head and neck squamous cell carcinoma.
  • 2002
  • Ingår i: Head and Neck. - John Wiley and Sons Inc.. - 1043-3074. ; 24:2, s. 127-135
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Positron emission tomography (PET) provides metabolic information of tissues in vivo. The purpose of this study was to assess the value of PET with 2-[(18) F] fluoro-2-deoxy-D-glucose (FDG) in prediction of therapy outcome (tumor response, survival, and locoregional control) in locally advanced HNSCC. METHODS: Between 1993 and 1999 47 patients underwent PET before (PET(1)) and after (PET(2)) 1 to 3 weeks of radical treatment with evaluation of metabolic rate (MR) and standardized uptake value (SUV) of FDG. All patients received radiotherapy, and 10 also received neoadjuvant chemotherapy. Median follow-up time was 3.3 years. RESULTS: Low and high MR FDG at PET(2), with median value as cutoff, was associated with complete remission in 96% and 62% (p =.007), with 5-year overall survival in 72% and 35% (p =.0042) and with local control in 96% and 55% (p =.002), respectively. CONCLUSIONS: FDG PET in the early phase of treatment of HNSCC is associated with tumor response, survival, and local control. Copyright 2002 John Wiley & Sons, Inc.
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26.
  • Jin, Yuesheng, et al. (författare)
  • Clonal chromosome abnormalities in premalignant lesions of the skin.
  • 2002
  • Ingår i: Cancer Genetics and Cytogenetics. - Elsevier. - 0165-4608. ; 136:1, s. 48-52
  • Tidskriftsartikel (refereegranskat)abstract
    • Two lesions, actinic keratosis (AK) and squamous cell carcinoma in situ (CIS), are believed to be precursors of squamous cell carcinoma (SCC) of the skin. These lesions can serve as an excellent model system for studying genetic changes associated with the inception of skin SCC. In the present study, five such lesions of the skin, three AKs and two AK+CIS, from three patients were short-term cultured and analyzed cytogenetically. One of the patients (case 3) had also an SCC in addition to three premalignant lesions. All lesions, but one, showed clonal karyotypic abnormalities. The recurrent changes identified were numerical, that is, +7 and +20. The structural rearrangements found in three AK were different, but it could be noted that the distal part of the long arm of chromosome 4 was involved in two AK and the SCC of case 3A. It was also interesting that chromosome 1 participated in structural rearrangements in three AK with band 1p31 being involved in two tumors. The karyotypic profile of these lesions is compared with that of skin SCC; it turns out that the general patterns are different in the sense that the SCC more often have complex karyotypes and display unbalanced aberrations involving the centromeric regions. Some karyotypic similarities between the SCC and their precursors are revealed. The fact that the structural rearrangements involving chromosomal band 3p13 and the centromeric region of chromosome 3 in AK are common features for many types of malignant tumors, including skin SCC, indicates that these changes are early genetic events associated with malignant transformation.
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27.
  • Ahlman, Håkan, 1947-, et al. (författare)
  • Liver transplantation for treatment of metastatic neuroendocrine tumors
  • 2004
  • Ingår i: Annals of the New York Academy of Sciences. - 0077-8923 (Print). ; 1014, s. 265-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Liver transplantation can be considered a therapeutic option for patients with neuroendocrine tumors only metastatic to the liver. Important selection criteria are well-differentiated tumors and a low proliferation rate (Ki67 <10%). In this series, orthopic liver transplantation offered good relief of symptoms and long disease-free intervals with initial survival of grafts and patients as in benign disease. The experience with multivisceral transplantation is still limited.
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28.
29.
  • Bauer, Henrik C. F, et al. (författare)
  • Monitoring referral and treatment in soft tissue sarcoma: study based on 1,851 patients from the Scandinavian Sarcoma Group Register
  • 2001
  • Ingår i: Acta Orthopaedica Scandinavica. - Taylor & Francis. - 0001-6470. ; 72:2, s. 150-159
  • Tidskriftsartikel (refereegranskat)abstract
    • This report is based on 1.851 adult patients with soft tissue sarcoma (STS) of the extremities or trunk wall diagnosed between 1986 and 1997 and reported from all tertiary referral centers in Norway and Sweden. The median age at diagnosis was 65 years and the male-to-female ratio was 1.1:1. One third of the tumors were subcutaneous, one third deep, intramuscular and one third deep, extramuscular. The median size was 7 (1-35) cm and 75% were high grade (III-IV). Metastases at presentation were diagnosed in 8% of the patients. Two thirds of STS patients were referred before surgery and the referral practices have improved during the study. The preoperative morphologic diagnosis was made with fine-needle aspiration cytology in 81%, core-needle biopsy in 9% and incisional biopsy in 10%. The frequency of amputations has decreased from 15% in 198688 to 9% in 1995-1997. A wide surgical margin was achieved in 77% of subcutaneous and 60% of deep-seated lesions. Overall, 24% of operated STS patients had adjuvant radiotherapy. The use of such therapy at sarcoma centers increased from 20% 1986-88 to 30% in 1995-97. Follow-up has been reported in 96% of the patients. The cumulative local recurrence rate was 0.20 at 5 years and 0.24 at 10 years. The 5-year metastasis-free survival rate was 0.70.
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30.
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