Peer-reviewed veterinary case report
Dog with tracheal breathing blockage from nodular amyloidosis
By Besancon, M Faulkner et al.·Published in Journal of the American Veterinary Medical Association·2004·Veterinary Medical Teaching Hospital, United States·View original on PubMed →
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Original publication title: Nodular immunocyte-derived (AL) amyloidosis in the trachea of a dog.
- Species:
- dog
Plain-English summary
A 7-year-old Miniature Schnauzer was brought to the vet for labored breathing and episodes of respiratory distress that led to collapse. X-rays showed a mass in the trachea, and during a scope procedure, the vet found a large growth blocking most of the airway. The mass was surgically removed, and the dog recovered well without complications. However, 17 months later, the dog experienced breathing problems again due to a new growth in the trachea.
People also search for: dog breathing problems · Miniature Schnauzer tracheal mass · dog surgery recovery · tracheal obstruction in dogs
Abstract
A 7-year-old castrated male Miniature Schnauzer was examined because of labored breathing and episodes of respiratory distress that progressed to collapse. On cervical radiographs, a focal soft tissue mass in the caudal cervical portion of the trachea was observed, and during tracheoscopy, a 1 x 1 cm, pedunculated, multinodular, pink, intraluminal mass extending from the dorsal tracheal membrane and obstructing approximately 80% of the tracheal lumen was seen. Tracheal resection and anastomosis was performed to remove the mass, and the dog recovered without complications. On histologic examination, the mass consisted of a large accumulation of homogeneous, faintly fibrillar eosinophilic material admixed with a predominantly plasma cell infiltrate; examination of sections stained with thioflavin T and Congo red stain confirmed that the eosinophilic material was amyloid. A diagnosis of nodular, immunocyte-derived (AL) amyloidosis was made. Seventeen months after surgery, the dog had a relapse of respiratory distress because of an extramedullary plasmacytoma involving the trachea.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15112779/