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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 72 (1994), S. 381-384 
    ISSN: 1432-1440
    Keywords: Leiomyosarcoma ; Rectum ; Endorectal ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Leiomyosarcomas of the rectum are uncommon neoplasms accounting for fewer than 1% of all malignancies of the colon and rectum. Approximately 215 cases have been described in the literature. Distinction from leiomyoma is often difficult, but regarding dignity is important. The case reported is that of a 68-year-old man in whom a 2.2-cm rectal mass covered by mucosa was diagnosed by rectoscopy and endorectal ultrasound. After treatment by wide local excision the histological specimen revealed a low-grade, highly differentiated leiomyosarcoma. Due to the lack of a large series of this disease, there is disagreement over the therapeutic strategy. At the moment a selective treatment approach seems to be the most frequenty advocated. Large tumors and those extending beyond the rectal wall are treated by radical surgical resection. Leimyosarcomas less than 2.5 cm in size and confined to the bowel wall can be treated by wide local excision. Endosonography can provide exact assessment of tumor size and expansion and is of great value in selecting the appropriate treatment.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 119 (1992), S. 91-93 
    ISSN: 0942-0940
    Keywords: Traumatic dural sinus injury ; operative technique ; outcome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In a period of 13 years 978 cases of severe head injuries were operated on in our clinic. An analysis of the medical reports includes injuries of the superficial dural sinus (39 cases=4%): among these injuries of the anterior and central part of the superior sagittal sinus (66 per cent), injuries of the transverse sinus (18 per cent), injuries of the posterior part of the superior sagittal sinus (8 per cent), and combined injuries of different dural sinuses (8 per cent). Clinical data, i.e. the causes of accident, radiological examination results, intracranial lesions, operation technqiues and outcome are analysed and discussed. The analysis of cases with dural sinus injuries shows a high mortality rate (total mortality rate: 16 patients=41%; intra-operative mortality rate: 8 patients=20%).
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 733 (1994), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 78 (1977), S. 1383-1389 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 68 (1996), S. 3719-3721 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experimental results on pulsed corona and dielectric-barrier discharge processing of very dilute concentrations of NO in N2 are presented. These NO reduction experiments measure the G value for electron-impact dissociation of N2 and are used to infer the effective electron mean energy in an N2 discharge plasma at atmospheric pressure. The data have been obtained from three different laboratories using widely differing electrode structures, voltage wave forms, power measurements, and chemical analyses. The NO reduction yields from the discharge reactors tested are all similar, corresponding to an electron mean energy of 4.0±0.5 eV. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 150 (2004), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background  It is well accepted that ultraviolet radiation from the sun can induce and promote growth of skin tumours. Skin cancer develops as a consequence of multiple genetic hits, where an initial, important step includes proliferation of cells susceptible to malignant transformation. Foci of morphologically normal epidermal keratinocytes overexpressing p53 protein are common in chronically sun-exposed skin. Such foci have previously been shown to represent expanding clones of p53-mutated keratinocytes. Although several characteristics concerning epidermal p53 clones remain to be resolved, an important role in skin carcinogenesis is anticipated. The density of epidermal p53 clones in human skin is largely unknown.Objectives  To compare the occurrence of epidermal p53 clones in skin surrounding cancers with that in skin surrounding benign melanocytic naevi. To assess the influence of age on frequency and size of epidermal p53 clones in human facial skin.Methods  We have analysed the number and sizes of epidermal p53 clones in skin specimens from patients with squamous cell carcinoma (SCC), basal cell carcinoma (BCC) and benign melanocytic naevi. Cases included normal facial skin from four different age groups. Tissue sections were immunohistochemically stained and the presence of p53 clones was recorded. Approximately 1·4 m of epidermis from a total of 112 biopsies was analysed.Results  We found 128 epidermal p53 clones in biopsy specimens from 112 patients. The results showed that the number and size of p53 clones increase with age. In normal skin adjacent to SCC p53 clones were significantly more numerous and greater in size in comparison with those in normal skin both adjacent to benign naevi and adjacent to BCC. Interestingly, normal skin in the close vicinity of BCC and melanocytic naevi showed similar results regarding both number and size of epidermal p53 clones.Conclusions  Our findings suggest a connection between development of epidermal p53 clones and SCC.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 343 (1980), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Pour traiter le cancer de la partie supérieure de l'arbre biliaire la stratégie actuelle des auteurs est de procéder à l'exérèse radicale de la tumeur ou de pratiquer une transplantation lorsque la tumeur ne peut Être réséquée dès lors qu'il n'y a pas d'extension extra-hépatique du processus tumoral. L'exérèse de la tumeur est effectuée par résection isolée du hile biliaire ou résection associée de la lésion et d'un segment du foie; cette dernière méthode qui s'applique aux cancers plus étendus est recommandée car plus radicale. Leur conception repose sur leur expérience concernant 108 cas opérés de février 1975 à octobre 1986. Chez 10 malades aucune intervention radicale ou palliative ne put Être pratiquée en raison du stade avancé de la tumeur. Chez 30 patients: différentes opérations de drainage furent pratiquées. En revanche, 52 sujets subirent une exérèse: 25 une résection biliaire, 27 une résection du hile associée à une hépatectomie partielle; 28 de ces résections étant considérées comme opération palliative, 24 comme palliative. Seize malades qui présentaient une lésion inacessible à l'exérèse ont été traités par une transplantation hépatique mais 7 d'entre eux accusèrent ultérieurement une extension extra-hépatique du processus tumoral. Les temps de survie furent de 1 mois après laparotomie, 5 mois après intervention de drainage, 15 mois après résection, 23 mois après opération dite curative, 7 mois après opération dite palliative, 21 mois après transplantation chez 7 malades. En raison des résultats favorables chez les derniers malades, la transplantation hépatique constitue pour les auteurs l'ultime chance de traitement radical des patients qui relèveraient autrement d'une opération palliative de drainage du fait de l'importance de la tumeur.
    Abstract: Resumen Nuestra estrategia actual en el tratamiento del adenocarcinoma de la porción proximal del canal biliar es la resección radical del tumor y, para los pacientes con tumores no resecables, la posibilidad de trasplante hepático si se ha demostrado que no hay crecimiento tumoral extrahepático. La resección tumoral es realizada mediante la resección del hilio solamente o combinada con hepatectomía parcial. Este Último procedimiento, que hace posible el tratamiento radical de los estados tumorales más avanzados y que eventualmente logra un mayor grado de radicalidad, es el recomendado. El concepto se fundamenta en la experiencia con 108 pacientes con carcinoma del canal biliar proximal operados entre febrero de 1975 y octubre de 1986. En 10 pacientes no fue posible realizar procedimiento alguno de tipo terapéutico o paliativo durante la laparotomía debido al avanzado estado del tumor. Diversos procedimientos de drenaje fueron ejecutados en 30 pacientes. Cincuenta y dos pacientes fueron sometidos a resección, 25 con resección del hilio solamente, 27 con resección combinada con resección parcial del hígado; 28 de las resecciones fueron clasificadas como curativas y 24 como paliativas; 16 pacientes con tumores no resecables reciberion trasplante hepático, y en 7 de ellos había crecimiento tumoral extrahepático en el momento del trasplante hepático. Las supervivencias medias fueron: laparotomía, 1 mes; procedimientos de drenaje, 5 meses; resección total, 15 meses; resección curativa, 23 meses; resección paliativa, 7 meses; trasplante hepático, 16 meses. Siete pacientes se hallan vivos a los 21 meses posttrasplante. Con base en los resultados favorables en el grupo más reciente de nuestros pacientes, el trasplante de hígado como la Última posibilidad de remoción del tumor en pacientes que no podrían ser tratados sino mediante procedimientos paliativos de drenaje, puede estar justificado.
    Notes: Abstract In the treatment of adenocarcinoma of the proximal bile duct, our current strategy is to resect the tumor radically and to offer patients with unresectable tumors the chance of hepatic transplantation, if extrahepatic tumor growth is exluded. Tumor resection is performed by resection of the hilum alone or combined with partial hepatectomy. The latter procedure enables radical treatment of more advanced tumor stages and, eventually, a higher degree of radically is achieved, and is recommended. This concept is based on our experience with 108 patients with proximal bile duct carcinoma operated on between February, 1975 and October, 1986. In 10 patients, no therapeutic or palliative surgical procedure could be performed during laparotomy because of advanced tumor stage. In 30 patients, various drainage procedures were performed. Fifty-two patients underwent resection: 25 underwent resection of the hilum only, and 27 underwent resection of the hilum combined with partial liver resection. Twenty-eight of these resections were classified as curative and 24 as palliative. Sixteen patients with unresectable tumors had hepatic transplantation. In 7 of these patients, extrahepatic tumor growth was already present at the time of liver transplantation. Median survival times were: laparotomy only, 1 month; drainage procedures, 5 months; total resection, 15 months; curative resection, 23 months; palliative resection, 7 months; liver grafting, 16 months. Seven patients are alive up to 21 months posttransplantation. On the basis of favorable results in our more recent group of patients, liver grafting as the ultimate chance for tumor removal in patients otherwise treatable only by palliative drainage procedures may be justified.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Der Chirurg 69 (1998), S. 208-211 
    ISSN: 1433-0385
    Keywords: Key words: Hydatid disease ; Spleen ; Surgical therapy ; OPSI ; Albendazole. ; Schlüsselwörter: Cystische Echinokokkose ; Milz ; chirurgische Therapie ; OPSI-Syndrom ; Albendazol.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Die cystische Echinokokkose der Milz stellt aufgrund des portalen Ausbreitungsmodus der Erkrankung eine Rarität dar. Bei Fehlen prospektiver Studien wurden in Einzelberichten sowohl milzerhaltende als auch milzexstirpierende Verfahren als mögliche Verfahren publiziert. Im Rahmen dieser Kasuistik wird der Fall einer 72 jährigen Patientin mit einer symptomatischen Echinococcuscyste der Milz beschrieben. Am Fall wird die chirurgische und pharmakologische Strategie zur Minimierung der Gefahr eines OPSI-Syndroms sowie die Wertigkeit einer adjuvanten Therapie mit Albendazol diskutiert.
    Notes: Summary. Based on the portal infection root, the hydatid disease of the spleen represents a rarity. Because of a lack of prospective studies, spleen-preserving procedures and splenectomies were puplished as surgical therapy in case reports. In this report, the case of a 72-year-old woman with symptomatic hydatid disease of the spleen will be reported. Surgical and pharmaceutical strategy to minimize the risk of an OPSI syndrome as well as the value of adjuvant therapy with Albendazole will be discussed.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  The extracellular matrix of fibrotic liver is predominantly produced by mesenchymal cells, the in vivo phenotype of which is poorly defined. We report on the application of combined immunohistology and in situ hybridization with [35S]-labeled α1(I) and α1(IV) procollagen RNA probes. In CCl4-treated rats, all α1(I) procollagen-producing cells were vimentin positive but cytokeratin negative; over 90% expressed desmin, a marker of rat liver stellate cells. α1(I) Procollagen-expressing, desmin-negative cells were confined to portal tract and perivascular stroma. Similarly, α1(I) procollagen gene transcripts were, in all instances, colocalized with vimentin in human liver. In fibrotic specimens, over 70% of these cells expressed α-actin. Antibodies against epithelial, endothelial, and Kupffer cells, granulocytes, and lymphocytes did not react with α1(I) procollagen RNA-expressing cells. Localization, morphology, and immunophenotype of α1(I) procollagen-expressing cells indicated stellate cells and portal/vascular fibroblasts, but not epithelial cells, to be sources of hepatic interstitial collagen. However, most α1(IV)-expressing human liver cells were identified as endothelial cells, the remaining cells were (myo-)fibroblastic and bile duct epithelial cells, but not hepatocytes. This indicates synthesis of procollagen type IV from both sides of the basement membrane and suggests an active participation of endothelial cells in the process of sinusoidal capillarization.
    Type of Medium: Electronic Resource
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