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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 412 (1987), S. 37-45 
    ISSN: 1432-2307
    Keywords: Amyloidosis ; Carpal tunnel syndrome ; Potassium permanganate ; Immunohistochemistry ; Immunoperoxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 140 biopsies from 108 patients afflicted with the carpal tunnel syndrome were studied, 27 of whom showed deposition of amyloid, in 6 of them to such an extent that the amyloid was considered significant in the pathogenesis of the carpal tunnel syndrome. Morphologically, vessels and ligaments were affected and especially the peritendinous structures. As it was always part of generalized amyloidosis, the amyloid in the carpal tunnel consisted immunohistologically of amyloid A in three cases (including one case with simultaneous amyloid deposition of the AA- and the AB-type), of amyloid Aϰ in one case, of amyloid of prealbumin origin in seventeen cases and of AB-amyloid in eight cases. We also described for the first time the manifestation of generalized senile amyloidosis (ASs) in the carpal tunnel. Deposition of amyloid ofβ-2-microglobulin type (AB) in the carpal tunnel was particularly frequent and massive.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 399 (1983), S. 233-236 
    ISSN: 1432-2307
    Keywords: Amyloid ; Amyloidosis ; Lymph nodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of a patient presenting with supraclavicular and cervical lymph node enlargement with demonstration of amyloid is presented. Histologic features are described. Amyloid deposition was not found in any other organ. Immunohistochemical typing with antisera raised against protein AA, Aλ, and Aκ showed a reaction only against Aλ. Thus, this case belongs to the immunoglobulin λ light chain-derived types that occur in many other parts of the body, particularly the respiratory tract.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1289
    Keywords: Schlüsselwörter Familiäre Amyloid Polyneuropathie ; Transthyretin ; Amyloidose ; Genetische Lebererkrankung ; Lebertransplantation ; Key words Familial Amyloid Polyneuropathy ; Transthyretin ; Amyloidosis ; Genetic liver disease ; Liver Transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A 59-year old male of German origin noticed exercise-independent cardiac arrhythmia two years before admission. An alanine 47 transthyretin variant of Familial Amyloid Polyneuropathy with hypertrophic cardiomyopathy, peripheral sensory-motor polyneuropathy, I. degree AV heart block was diagnosed. To diminish production and deposition of mutant transthyretin and to prevent disease progression orthotopic liver transplantation was performed. Prior to transplant the patient complained of inappetence. Postoperatively, he received a chemically defined enteral nutrition regime that was discontinued after 30 months until return of appetite and weight gain indicated marked improvement. However, a duodenal biopsy still demonstrated amyloid deposits 24 months after transplantation. Echocardiographic findings remained unchanged. Neurologic examination showed an improvement of sensory-motor polyneuropathy with regression of electromyographic changes. Only traces of variant transthyretin were detectable in plasma samples taken 12 months after the operation. During the 3 year follow-up, no additional symptoms have occurred and progression of amyloidosis was prevented. Currently, orthotopic liver transplantation is the only specific treatment to prevent progression of familial amyloid polyneuropathy.
    Notes: Zusammenfassung Anläßlich der Abklärung von Herzrhythmusstörungen wurde bei einem 59-jährigen Patienten deutscher Herkunft eine Familiäre Amyloid Polyneuropathie (FAP) mit hypertropher Kardiomyopathie, beginnender peripherer Polyneuropathie, AV-Block I. Grades, intermittierend II. Grades Typ MOBITZ, und einer Aminosäuresubstitution von Glycin durch Alanin an Position 47 des Transthyretins (TTR Ala47) diagnostiziert. Um die weitere Bildung und Ablagerung des mutierten Transthyretins zu reduzieren und den Progreß der Erkrankung zumindest aufzuhalten, wurde die Indikation zur Lebertransplantation gestellt. Bei sonstiger Symptomfreiheit entwickelte der Patient bereits vor Transplantation eine progrediente Inappetenz. Postoperativ erhielt der Patient eine enteral-supportive Ernährung über Duodenalsonde für einen Zeitraum von 30 Monaten, bis sich der Appetit verbesserte und das Körpergewicht stabilisierte. In Biopsien der Duodenalschleimhaut ließ sich 24 Monate nach Transplantation weiterhin Amyloid nachweisen. Wie bereits vorTransplantation bestanden eine Verminderung von Magenperistaltik und Duodenalmotilität sowie eine hypertrophe Kardiomyopathie ohne wesentliche funktionelle Einschränkungen. Eine diskrete Verbesserung der sensomotorischen Polyneuropathie konnte anhand der Normalisierung elektromyographischer Veränderungen belegt werden. 12 Monate nach Transplantation waren nur noch Spuren der Transthyretinvariante (TTR Ala47) im Plasma zu finden. Während des bisherigen Beobachtungszeitraumes von mehr als 3 Jahren nach Transplantation sind keine neuen Symptome aufgetreten. Eine Progression der Erkrankung konnte eindeutig verhindert werden. Die orthotope Lebertransplantation ist gegenwärtig die einzige erfolgversprechende Therapieform, um eine Progression der Familiären Amyloid Polyneuropathie zu verhindern.
    Type of Medium: Electronic Resource
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