Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Der Pathologe 16 (1995), S. 426-430 
    ISSN: 1432-1963
    Keywords: Schlüsselwörter Sarkomatoides Harnblasenkarzinom ; Immunhistochemie ; Differentialdiagnose ; Key words Sarcomatoid carcinoma of the urinary bladder ; Immunhistochemistry ; Differential diagnosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A 25-year-old patient with a rapidly growing sarcomatoid carcinoma of the urinary bladder is reported. The diagnosis was made on the basis of extended atypical proliferations of spindle or pleomorphic cells in the area of pelvic floor and the radix of the penis. The tumor showed invasion of the blood and a high Ki-67 growth fraction up to 40 %. Immunohistochemically, the reactions with antibodies against cytokeratin, EMA, and vimentin were positive, while negative results were obtained in reactions with antibodies against desmin, actin, PSA, S 100, human epithelial antigen (Ber-EP4), and cytokeratin 13. The differential diagnosis against myosarcomas, pseudosarcomatous lesions, and inflammatory pseudotumours is discussed. After radical surgery a pelvic recurrence and pulmonary metastases developed, which led to the patient's death 3 months later. This case shows that sarcomatoid carcinomas of the urinary bladder can be found even in young people.
    Notes: Zusammenfassung Bericht über einen 25 jährigen Mann mit einem schnell wachsenden sarkomatoiden Karzinom der Harnblase. Die Diagnose basierte auf ausgedehnten atypischen spindel- bis pleomorphzelligen Proliferaten im Bereich des Beckenbodens und der Peniswurzel mit Angioinvasion. Der Tumor zeigte eine hohe etwa 40 % betragende Ki -67-Wachstumsfraktion. Die immunhistochemischen Reaktionen mit Antikörpern gegen Zytokeratin, Epitheliales Membranantigen und Vimentin waren positiv, die Reaktion gegen Desmin, Actin, PSA, S 100, Humanes Epitheliales Antigen (Ber-EP4) und Zytokeratin 13 negativ; ein Teil der Tumorzellen exprimierte p 53. Die Differentialdiagnose u. a. zu Myosarkomen, pseudosarkomatösen Läsionen und inflammatorischen Pseudotumoren wird erörtert. Nach der Radikaloperation entwickelten sich ein ausgedehntes Rezidiv im kleinen Becken und Lungenmetastasen, denen der Patient 3 Monate später erlag. Der Fall zeigt, daß sarkomatoide Karzinome der Harnblase auch bei jungen Menschen vorkommen können.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1434-0879
    Keywords: Kidney transplantation ; Donor pretreatment ; PUVA ; Ultraviolet irradiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Extended experimental experience with the efficiacy of pretreating the kidney donor and the allograft by means of photochemotherapy (photosensitizer+UVA irradiation=PUVA) was adopted in clinical kidney transplantation. In a preliminary unrandomized study similar patient populations were treated by generally uniform methods. Thirty-three PUVA-pretreated kidneys (group A) were compared with the experience regarding 26 nonpretreated kidney allografts (group B). The number of rejection episodes was significantly lower in the first 3 months in group A (p〈 0.05 vs group B) and fewer grafts failed because of irreversible rejection (2 vs 5). Furthermore, in group A the rate of infectious complications was lower (18% vs 34%). The cumulative allograft survival at 3 months was improved from 65% in group B to 81% in group A and at 12 months from 65% 76%, respectively. These differences were not significant. Therefore, our preliminary clinical experience with a photochemical donor pretreatment is encouraging and further use in a randomized study seems to be necessary.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 16 (1988), S. 157-159 
    ISSN: 1434-0879
    Keywords: Urogenital tuberculosis ; Urolithiasis ; Texture of calculi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Of 628 patients with bacteriologicaly or histologicaly proven urogenital tuberculosis (UGT) treated from 1960 to 1985. 126 patients (20.1%) had additional urinary tract infection and 66 patients (10.5%) developed urolithiasis. In these 66 patients a simultaneous urinary tract infection occured in 29 cases (43.9%). Twenty-eight calculi were analyzed by a combined crystal-optical and x-ray-diffraction method. A high incidence of struvite/carbonate apatite calculi (11/28) as well as of calcium phosphate calculi (6/28) was found. The texture of 15 calculi was investigated on thin sections by polarization microscopy and a high concentration of organic material was found in both calcium oxalate and struvite/carbonate apatite calculi probably due to the specific and nonspecific infection with deposition of cell and protein degradation products.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 17 (1989), S. 131-134 
    ISSN: 1434-0879
    Keywords: Dog renal transplantation ; Ultraviolet radiation ; Donor pretreatment ; PUVA ; Fine needle aspiration biopsy ; Rejection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Kidneys were removed ten minutes after treating the donor with 1 mg of 8-methoxypsoralen per 1 kg b.w., during hypothermic preservation UVA-irradiated (intensity: 1.34 mJ/s) for 4 h and thereafter transplanted into ASDI dogs (n=10). Fine needle aspiration biopsies were performed to analyze the inflammatory response. In comparison with untreated ASDI dogs (n=9) PUVA pretreated renal grafts showed three important differences: 1. At the peak of the rejection process in the control group (day 8) the cellular infiltrate in the PUVA-pretreated kidneys was significantly diminished. 2. This reduction was caused by a significantly lower influx of monocytes/macrophages. 3. The peak of the cellular response in the PUVA group was delayed. These findings support the concept of reduced graft immunogenicity by pretransplant PUVA treatment.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1434-0879
    Keywords: Renal transplantation ; PUVA ; Donor pretreatment ; Ultraviolet irradiation ; Immunogenicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Photochemical pretreatment of the kidney donor (Sprague-Dawley rats/SD) with 8-methoxypsoralen (8-MOP) and ex vivo longwave ultraviolet (UVA) irradiation of the kidney graft (PUVA therapy) significantly prolonged survival in allogeneic recipients (BD IX rats). After more than 100 days 7 long-term surviving PUVA-pretreated SD kidneys were retransplanted into BD IX rats. Seven out of 7 secondary recipients survived for more than 100 days. Twenty BD IX recipients of normal SD kidneys were treated at the time of transplantation with serum (1 ml i.v.) and/or spleen lymphocytes (1x107 i.v.) obtained from the PUVA-treated long-term survivors. A prolonged graft survival was achieved in 7 our of 20 rats, among them 4 out of 8 recipients of the serum-treated group. In conclusion, the long-term survival of PUVA-treated rat renal allografts is associated with a strong reduction of graft immunogenicity and the development of graft protecting humoral as well as cellular effectors.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1434-0879
    Keywords: PUVA ; Kidney transplantation ; Rat ; UV irradiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Pretreatment of the kidney donor with 8-methoxypsoralen (8-MOP) and ex vivo longwave ultraviolet irradiation (UVA) of the kidney prolonged the subsequent survival on allogeneic recipients. The efficacy of this treatment seems to be dependent on the time and dose of UVA irradiation rather than on the dose of 8-MOP. In conclusion, PUVA treatment is effective in reducing the immunogenicity of the rat kidney allograft, although the mechanism remains unclear. These experimental findings are new and preliminary results in clinical human kidney transplantation are favourable.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1434-0879
    Keywords: Renal transplantation ; Rat ; Ultraviolet irradiation ; PUVA ; Pulsatile perfusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Systemic photochemical pretreatment of a rat kidney donor with the photosensitizer 8-methoxypsoralen (8-MOP; 0.06 mg/kg intravenously, 10 min before graft removal) plus ex vivo longwave ultraviolet (UVA) irradiation of the kidney graft during simple hypothermic storage significantly prolonged survival time in allogeneic recipients. In contrast to these results, the present use of UVA irradiation during hypothermic pulsatile kidney perfusion using Euro-Collins® solution containing 8-MOP (0.06 mg/ml) did not prolong graft survival compared with untreated controls. Systemic application of 8-MOP to the kidney donor may be necessary for effective action of the combined photochemical treatment as a method of immunoalteration. The extended UVA irradiation time and the local use of 8-MOP in the preservation fluid had no effect on graft survival possibly because of inadequate tissue distribution of 8-MOP during both hypothermia and perfusion.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1434-0879
    Keywords: Kidney transplantatioon ; Rat ; PUVA therapy ; Ultraviolet irradiation ; Azathioprine ; Prednisolone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Pretreatment of the kidney donor with 8-methoxy-psoralen (8-MOP) and direct longwave ultraviolet (UVA) irradiation of the kidney graft (PUVA therapy) significantly prolonged survival in allogeneic recipients. 40% of the recipients survived more than 100 days with normal transplant function. The addition of standard clinical immunosuppressive agents azathioprine and prednisolone (both at dosages of 15 mg/kg body weight/day for 21 days) to the PUVA therapy further improved graft survival rate, with a recipient survival rate of 62.5%. The two drugs alone were less effective in prolonging graft survival rate (28.5%). A synergistic effect of PUVA therapy and standard immunosuppressive treatment with azathioprine and prednisolone was demonstrated. This suggested a possible clinical application of this type of immunosuppression and immunoregulation.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 8 (1980), S. 211-218 
    ISSN: 1434-0879
    Keywords: Urolithiasis ; Kidney transplantation ; Hyperparathyroidism ; Crystallography ; X-ray diffraction studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Urolithiasis is a rare complication following kidney transplantation. Experience with this complication in 6 of 426 transplantations performed from 1968 to 1979 is reviewed. The clinical symptoms are different from the disease in non-transplant patients. Three major predisposing causes for the development of calculi after kidney transplantation were found in our patients — urodynamic disorders following complications of the ureterovesical anastomosis, persistent bacteriuria and renal tubular acidosis and, less importantly, the presence of hypertacemia and hypercalciuria as a result of secondary hyperparathyroidism. Crystal-optical and x-ray-diffraction studies contributed to the interpretation of the constituents and texture of the calculi and of the aetiological factors concerned.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 10 (1982), S. 149-152 
    ISSN: 1434-0879
    Keywords: Rat kidney transplantation ; Microsurgical technique ; Ureteric anastomosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A detailed description is presented of an improved technique of orthotopic rat kidney transplantation with end-to-end anastomoses of the renal vessels, non-splinted end-to-end ureteric anastomosis and simultaneous bilateral nephrectomy. Forty-four consecutive transplantations are analysed. No failure due to complications of the vascular anastomoses occurred. The ureteric anastomoses were followed by stenosis in only two cases (5%), one of which was reconstructed. The operation times for the vascular anastomoses were 16–24 min, with an average of 20 min, and for complete transplantation 50 min. Therefore, our method seems to be less time consuming than other common techniques of renal transplantation. The technique described has produced a success rate of 95% and guarantees a standardised and reproducible organ quality.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...