Peer-reviewed veterinary case report
Rostral displacement of the palatopharyngeal arch: a case report.
- Journal:
- Equine veterinary journal
- Year:
- 1976
- Authors:
- Goulden, B E et al.
- Species:
- horse
Plain-English summary
A horse was diagnosed with a condition called rostral displacement of the palatopharyngeal arch, which means that part of its throat structure was not in the right position. Upon examination, the horse also had a noticeable deformity in the area around its voice box, and both of the muscles that help with swallowing were missing. Additionally, the shape of a cartilage in its throat was very unusual, and some muscles were only partially developed. The researchers believe this issue might have happened due to a problem during the horse's early development. The outcome of the treatment for this condition was not mentioned in the report.
Abstract
A horse with rostral displacement of the palatopharyngeal arch was found to have a bilaterally symmetrical deformity of the laryngeal area. Both left and right cricopharyngeal muscles were absent. The shape of the thyroid cartilage was grossly abnormal and vestiges of the cricothyroid muscles were attached only to the cricoid cartilage. It was suggested that such an anomaly could have resulted from aberrant development of the fourth branchial arch.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/986300/