The differential diagnosis of a right atrial tumour can be difficult in patients with HIV or AIDS. Even if the site is atypical and there is no lymphadenopathy, a lymphoma should be considered. In case of doubt a histological diagnosis via an exploratory thoracotomy should be performed.
EinleitungDie häufigste Herzerkrankung beim Pferd ist die Insuffizienz einer oder mehrerer Herzklappen. Sie wird in der Regel im Rahmen der klinischen Untersuchung sowohl bei leistungsschwachen als auch klinisch unauffälligen Pferden durch auftretende Nebengeräusche festgestellt. Die vorwiegend betroffene Klappe beim Pferd ist nach der Mitralklappe die Aortenklappe (Aortenklappeninsuffizienz, AVI) (Marr 1999). Dabei wird zwischen der akuten und chronischen Klappeninsuffizienz unterschieden.Die akute AVI wird meist durch charakteristische vegetative Veränderungen aufgrund einer bakteriellen, vorwiegend subakut verlaufenden Endokarditis ausgelöst (Stadler et al. 1995, Fröhlich et al. 2004. Dagegen liegen bei der chronischen AVI eher degenerative Schäden an den Noduli und bandoder knotenartige fibröse Verdickungen vor (Else und Holmes 1972, Marr 1999 Schlüsselwörter: Pferd-Echokardiografie-Herzinsuffizienz-Aorteninsuffizienz-Klappenruptur Acute heart insufficiency due to aortic rupture This report documents the case of an acute heart insufficiency due to rupture of an aortic valve in an 18 year old warmblood gelding. The horse was referred with the history of sudden poor performance, disturbed condition and a cardiac murmur. During clinical and echocardiographical examination an acute heart insufficiency with involvement of the lung and low to high grade insufficiency of all four heart valves were diagnosed. As induction of acute heart insufficiency, a rupture of left coronary aortic valve was detected. The horse was euthanized on account of the progression and infaust prognosis. The pathomorphology and -histology examination showed a chronic endocarditis as cause of the valve rupture. The etiology and pathogenesis of the acute aortic regurgitation and the acute heart insufficiency will be exemplified and discussed.Keywords: horse-echocardiography-heart insufficiency-aortic insufficiency-valve rupture T. Sundermann Pferdeheilkunde 25
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