Oesophageal obstruction due to trichobezoars in two cats

CASE SERIES SUMMARY: This case series describes two cats diagnosed with oesophageal obstruction due to trichobezoars. Both cases presented for acute dyspnoea, with thoracic radiographs revealing changes consistent with oesophageal foreign material causing ventral displacement of the trachea. Endoscopic removal was unsuccessful and both cases required surgical intervention. Case 1 died within 24 h of trichobezoar removal, likely from aspiration pneumonia. Case 2 developed laryngeal collapse 10 days after trichobezoar removal and required a permanent tracheostomy. Case 2 has been followed up for >1 year without any further complications. RELEVANCE AND NOVEL INFORMATION: There is minimal published information on oesophageal trichobezoars in cats. These cases provide information on presentation, radiographic findings and complications associated with oesophageal trichobezoars. The intention of this case series is to increase the index of suspicion for this syndrome among clinicians treating feline patients.