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Peer-reviewed veterinary case report

CT and X-ray signs of zygomatic arch changes in a Thoroughbred

By Conradie, Marius et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2022·Department of Companion Animal Clinical Studies·View original on PubMed

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Original publication title: Radiographic and CT features of zygomatic arch pneumatization in a Thoroughbred with a recurrent progressive ethmoid hematoma.

Species:
horse

Plain-English summary

A 7-year-old Thoroughbred gelding was brought in for facial swelling and mild bleeding from one nostril. This horse had previously undergone surgery for a progressive ethmoid hematoma, which is a type of growth in the nasal cavity. A CT scan revealed a large mass in the sinus area that had returned and was affecting the surrounding bone. The veterinarians performed surgery to remove the mass again after confirming it was indeed the same type of growth.

People also search for: horse nasal bleeding treatment · Thoroughbred facial swelling causes · progressive ethmoid hematoma in horses

Abstract

A 7-year-old Thoroughbred gelding presented with a history of mild unilateral right-sided epistaxis and facial swelling over the right caudal maxillary sinus and zygomatic arch. Eleven months previously a progressive ethmoid hematoma had been surgically removed from the right caudal maxillary and conchofrontal sinus. Computed tomography identified a large expansile soft-tissue attenuating mass in the right caudal maxillary sinus, with protrusion into the conchofrontal sinus, that extended into the zygomatic arch. Lytic expansion and thinning of the cortex with pneumatization of the zygomatic arch was present. The mass was surgically excised after a biopsy had confirmed the recurring progressive ethmoid hematoma.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34637560/