Peer-reviewed veterinary case report
Pup with lung cartilage defect and severe lung twisting
By Hoover, J P et al.·Published in Journal of the American Veterinary Medical Association·1992·Department of Medicine and Surgery·View original on PubMed →
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Original publication title: Bronchial cartilage dysplasia with multifocal lobar bullous emphysema and lung torsions in a pup.
Plain-English summary
A 5-month-old Chow Chow puppy was brought in because he was having trouble exercising, was breathing heavily, and had a cough that came and went. X-rays showed serious lung issues, and sadly, the puppy passed away shortly after the tests. A thorough examination after death revealed that his lungs were severely inflated and twisted, which was likely caused by a problem with the cartilage in his airways. This condition led to significant lung damage and ultimately contributed to his death.
People also search for: puppy breathing problems · Chow Chow cough · dog lung disease symptoms
Abstract
Bronchial cartilage dysplasia is believed to have caused lobar bullous emphysema in a 5-month-old Chow Chow that had exercise intolerance, progressive dyspnea, and episodic cough. Radiography of the thorax revealed hyperlucency of the left hemithorax, displacement of the mediastinum and heart to the right, and flattening of the diaphragm. The pup died shortly after the radiographs were obtained. Necropsy revealed massive hyperinflation with 180 degrees torsion of the cranial portion of the left cranial lung lobe, and hyperinflation with less than 180 degrees torsion of the right accessory lung lobe. Histologic examination of the affected lung lobes revealed a lack of bronchial cartilage, loss and displacement of alveolar walls, and bulla formation that resembled congenital (infantile) lobar emphysema of human beings. In this pup, lung lobe torsions may have been predisposed by bronchial cartilage dysplasia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/1517137/