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  • 1
    ISSN: 1432-0509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 39 (1989), S. 65-68 
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 41 (1989), S. 274 
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 21 (1992), S. 0 
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Cytological smears (CS), taken from the lateral border of the tongue of HIV-seropositive patients (HIV +) (n= 34) and of seronegative controls (HIV -) (n= 16), were examined by means of immunocytoychemistry (APAAP) for the distribution patterns of different cytokeratins and MHC class II antigens. Compared with HIV- patients in CS of HIV-infected patients cornification associated cytokeratins 10/11 were increased, while the number of keratinocytes positive for cytokeratins 13/16 was comparable in both groups. Expression of simple epithelial cytokeratins 19, rarely observed in CS of HIV- patients, was a frequent findings in CS of HIV+ patients. Keratinocytes positive for MHC class II antigens were observed in CS of 12/34 HIV +, while all control CS were negative. In the group of HIV + patients no correlation was found between the clinical presence of HL and the expression of cytokeratins or class II antigens. The altered distribution of cytokeratins may reflect local responses to proliferative stimuli or local inflammation due to the presence of microbial antigens or may occur as a general unspecific reaction in the setting of systemic viral infection. This non-invasive technique seems to be a valuable tool to determine the proliferation rate of oral epithelial cells.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Der Chirurg 68 (1997), S. 159-167 
    ISSN: 1433-0385
    Keywords: Key words: Schwannoma ; Soft tissue tumors ; Surgical therapy ; Diagnosis. ; Schlüsselwörter: Schwannom ; Weichteiltumoren ; chirurgische Therapie ; Diagnostik.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Wir berichten exemplarisch über drei Patienten, die im Zeitraum von Februar 1991 bis Oktober 1994 in unserer Klinik wegen intraabdomineller Schwannome operiert wurden. Im Fall 1 wurde ein benignes Schwannom des Magens durch Billroth-II-Resektion behandelt, Leitsymptom war eine gastrointestinale Blutung. In Fall 2 wurde ein malignes Schwannom des Duodenums mit Lebermetastase durch weite En-bloc-Tumorresektion mit retroperitonealer Lymphadenektomie und anatomischer Rechtsresektion der Leber behandelt. Eine nach 7 Monaten aufgetretene metachrone Lebermetastase wurde durch intraparenchymatöse Lasercoagulation kontrolliert, ein nach 19 Monaten aufgetretenes Lokalrezidiv erforderte eine weitere Tumorresektion. Primäres Leitsymptom war eine palpable Tumormasse. In Fall 3 wurde ein malignes Schwannom der Bauchwand auswärts in Fragmenten reseziert. Trotz postoperativer Radiatio kam es nach 6 Monaten zum Lokalrezidiv mit Leberinfiltration, welches en bloc reseziert wurde. Zu diesem Zeitpunkt bestand bereits eine beginnende Peritonealsarkomatose. Unter postoperativer Chemotherapie kam es zum raschen Tumorprogreß. Der Patient verstarb 18 Monate nach Erstoperation. Anhand der dargestellten Fälle werden Symptomatik, differentialdiagnostische Probleme und operatives Vorgehen bei benignen und malignen Schwannomen des Bauchraums erörtert.
    Notes: Summary. We report three patients who were operated on because of an intraabdominal schwannoma between February 1991 and October 1994 in our department. In the first case, a benign gastric schwannoma was treated by a distal gastric resection (Billroth II); the main symptom was gastric bleeding. In the second case, a malignant duodenal schwannoma with liver metastasis was treated by wide en-bloc resection of the tumor including retroperitoneal lymphadenectomy and an anatomical resection of the right lobe of the liver. A metachronous metastasis of the liver, appearing 7 months postoperatively, was treated by intraparenchymatous laser coagulation; a local recurrence, appearing 19 months postoperatively, led to another tumor resection. The main symptom was a palpable intraabdominal mass in this case. In the third case, a malignant schwannoma of the abdominal wall was resected in fragments in another clinic. Six months later a local recurrence with infiltration of the liver appeared in spite of postoperative radiation and was resected en bloc. Early peritoneal sarcomatosis was apparent at that time. Postoperative chemotherapy did not prevent quick progression of the tumor. The patient died 18 months after the first operation. The clinical presentation, differential diagnosis and operative strategy for benign and malignant intraabdominal schwannomas are discussed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 25 (1999), S. 113-117 
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of panarteritis with purpura fulminans, mononeuritis multiplex, gastrointestinal manifestation and presumably cardiac involvement in a previously healthy 22-year-old man with a history of drug abuse including cocaine, cannabinoids and methamphetamines is described. Histopathological examination of the gut led to the diagnosis of panarteritis without immune deposits. Antineutrophil antibodies were negative. Besides the drugs, no other possible cause of vasculitis was found. The patient recovered completely after 1 year. Drug abuse is a thus possible cause of severe extracerebral disabling vasculitis.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1434-0879
    Keywords: Immunohistochemistry ; Bladder carcinoma ; Keratin ; Cytokeratin ; Carcinoembryonic antigen ; Cal ; Prostate-specific antigen ; Prostate acid phosphatase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Keratin was identified with the aid of polyclonal antisera in the cytoplasm in over 90% of the transitional cell carcinomas investigated. The intensity of staining increased with the degree of dedifferentiation. Detection of cytokeratin with monoclonal antibodies was successful in over 80% of samples. All squamous cell carcinomas of the bladder were strongly positive for keratin and cytokeratin. CEA was found in 20% of the G1 and 40% of the G2 and G3 carcinomas of the bladder. Both the prostatic epithelium markers PSA and PAP and the monoclonal antibody Ca1 were negative in all cases.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 148 (2000), S. 900-901 
    ISSN: 1433-0474
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Pleomorphes Adenom ; Myoepitheliales Karzinom ; Malignes Myoepitheliom ; Pathologie der Speicheldrüsenneubildungen ; Key words Pleomorphic adenoma ; Myoepithelial carcinoma ; Malignant myoepithelioma ; Salivary gland neoplasm pathology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary We report the rare development of a myoepithelial carcinoma in a pleomorphic adenoma involving the minor salivary glands in the buccal mucosa of a 78-year-old female. Tumor presented as a small asymptomatic left buccal mass. The initial dominant component of the neoplasm was a pleomorphic adenoma, while the minor component was a myoepithelial carcinoma. Recurrences of tumor after 2 and then 5 years were excised. Histopathological examination of the last tissue removed showed a pure myoepithelial carcinoma of the minor salivary glands without evidence for a pleomorphic adenoma. The clinical features, therapy, diagnosis, histopathology and literature are reviewed.
    Notes: Zusammenfassung Es wird der seltene Verlauf der Entstehung eines myoepithelialen Karzinoms in einem pleomorphen Adenom der kleinen Speicheldrüsen der Mundschleimhaut vorgestellt. Der im linken Mundwinkel angesiedelte Tumor zeigte primär ein dominierendes pleomorphes Adenom der kleinen Speicheldrüsen mit einem kleinen kapselnahen Areal eines myoepithelialen Karzinoms. Im Verlauf von 2 und 5 Jahren entwickelte sich im Bereich des linken Mundwinkels 2malig ein erbsengroßer Rezidivtumor. Die Tumoren wurden großzügig exzidiert. Die histologische Aufarbeitung zeigte jeweils ein myoepitheliales Karzinom der kleinen Speicheldrüsen, Anteile eines pleomorphen Adenoms ließen sich nicht mehr nachweisen. Die Klinik, Diagnostik, Therapie und histologischen Merkmale unter Berücksichtigung der Literatur werden diskutiert.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-2277
    Keywords: Key words Extracellular matrix ; Liver transplantation ; Acute rejection ; Early chronic rejection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We have previously observed changes at the extracellular matrix (ECM) which significantly correlated with the extent of preservation and reperfusion injury. In the present study, we attempted to investigate whether the ECM may be also involved in the pathophysiological sequelae of acute and chronic rejection. Of 81 patients monitored for the ECM parameters laminin, hyaluronic acid, fibronectin receptor, and transforming growth factor (TGF)-β , 28 patients developed acute rejection (〈 1 month), in 14 patients (17.4 %) acute rejection was steroid resistant, 4 patients (4.5 %) developed early chronic rejection following acute steroid-resistant rejection. Acute and chronic rejection were confirmed by established clinical and histological criteria. Laminin levels were significantly increased in patients experiencing acute steroid-resistant rejection (4204 ± 133 ng/ml; P K 0.01) compared with patients with steroid-sensitive rejection (1059 ± 27.3 ng/ml) and with an uneventful postoperative course (1214 ± 17.4 ng/ml). No increase in laminin was observed in those four patients who developed early chronic rejection (1099 ± 58.7 ng/ml). Hyaluronic acid, fibronectin receptor, and TGF-β levels also increased in patients with acute steroid-resistant rejection; hyaluronic acid: 290 ± 10.8 μg/l vs 154 ± 13.6 μg/l and 131 ± 11.7 μg/l in patients with steroid-sensitive and no rejection, respectively; fibronectin receptor: 1003 ± 23.5 ng/ml vs 573 ± 24.8 ng/ml and 428 ± 13.6 ng/ml in patients with steroid-sensitive and no rejection, respectively; and TGF-β : 393 ± 14.9 pg/ml versus 315 ± 10.7 pg/ml and 233 ± 8.9 pg/ml in patients with steroid-sensitive and no rejection, respectively. A further increase in hyaluronic acid levels was observed in patients who developed early chronic rejection, while fibronectin receptor and TGF-β levels remained low, similarly to laminin levels. The increase in laminin, hyaluronic acid, fibronectin receptor, and TGF-β during acute steroid-resistant rejection may be stimulated by the rejection-related release of cytokines and adhesion molecules which paralleled the increase in ECM parameters. The lack of increase in laminin and fibronectin receptor levels in those patients who developed early chronic rejection may reflect an inability to recover from acute rejection.
    Type of Medium: Electronic Resource
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