RESUMO
This work aimed to characterize the clinic-pathological presentation of an outbreak of auricular and laryngeal chondritis in pigs. Visits were made to pig farms, where the clinical history was obtained, and clinical and postmortem examinations were performed. In those farms, 3% to 4% of pigs presented otohematomas, which started in the nursery and extended to the finishing phase. Moreover, some finishing pigs presented with respiratory distress, initially characterized as inspiratory dyspnea, associated by an uncommon respiratory stridor and culminating in death. Grossly, nursery piglets had enlarged ears, and on the cut surface, the cartilage was fragmented and associated with blood clots. In the finishing phase, in addition to auricular lesions, the epiglottis and arytenoid cartilages were thickened and distorted, which partially occluded the lumen. Microscopically, the laryngeal and auricular cartilages were fragmented, displayed a loss of matrix basophilia, and were surrounded by lymphohistiocytic inflammatory infiltrate, with occasional multinucleated giant cells and fibrosis. The lesions exclusively affected elastic cartilages. The disease in finishing pigs led to increased mortality and was a differential diagnosis to respiratory challenges. It was not possible to determine the factor that triggered this condition; however, a nutritional association is suspected. To the authors' knowledge, this is the first report of primary auricular and laryngeal chondritis in pigs.
Assuntos
Doenças Ósseas , Doenças das Cartilagens , Doenças dos Suínos , Animais , Suínos , Doenças das Cartilagens/diagnóstico , Doenças das Cartilagens/epidemiologia , Doenças das Cartilagens/veterinária , Cartilagem Aritenoide/patologia , Inflamação/patologia , Inflamação/veterinária , Doenças Ósseas/patologia , Doenças Ósseas/veterinária , Doenças dos Suínos/diagnóstico , Doenças dos Suínos/epidemiologia , Doenças dos Suínos/patologiaRESUMO
Toda obstrucción de la vía aérea se expresa por un estridor que será diferente según la localización de la obstrucción. El estridor es un ruido ocasionado por el pasaje de aire en forma turbulenta a través de una vía aérea con calibre disminuido. Cuando la obstrucción se ubica por encima de las cuerdas vocales el estridor será inspiratorio. Describimos diferentes patologías de la laringe supraglótica, congénitas y adquiridas, que presentan estridor en algún momento de su evolución.
An obstructed airway causes stridor. Stridor willbe different depending on the location of the obstruction. Stridor is a noise caused by the passage ofturbulent air through a diminished airway caliber. If the obstruction occurs above the vocal cords, itwill be inspiratory. We describe different pathologies of the supraglotticlarynx, both congenital and acquired, producingstridor at some moment of their evolution.
Uma via aérea obstruída provoca estridor. Estridor será diferente dependendo da localização da obstrução. Estridor é um ruído causado pela passagemdo ar turbulento através de uma diminuição do calibre das vias aéreas. Nós descrevemos diferentes patologias da laringe supraglótica, tanto congênitas e adquiridas, que apresentam stridor em algum momento de sua evolução.