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Published on: September 7, 2018
Dorsal mediastinal haemorrhage in dogs: 4 cases (2010-2018)
1Anderson Moores Veterinary Specialists, Internal Medicine, Winchester, SO21 1LL, UK.
Objective:
This retrospective case series describes the clinical presentation and CT findings of dogs with presumed mediastinal haemorrhage with no apparent identifiable underlying cause.
Materials And Methods:
Medical records were searched for dogs with presumed or suspected mediastinal haemorrhage of non-thymic origin. For all dogs, data on signalment, history, physical examination, treatment and outcome were collected by reviewing the medical records. Follow-up information was collected by telephone interviews with the owners and/or their primary-care veterinarians.
Results:
Four dogs were included. All survived to discharge with apparent resolution of the mediastinal haemorrhage (based on repeat imaging and/or clinical signs) with supportive treatment alone. Follow-up information was available from 2 months to 5 years following discharge, and none of the patients showed a recurrence of clinical signs during this period.
Clinical Significance:
This case series highlights that presumed haemorrhage into the mediastinum can occur in dogs without an obviously identifiable cause and, whilst rare, should be considered as a cause of dorsal mediastinal masses and may be successfully managed with supportive care alone.

