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Ultrasound-guided biopsy as a diagnostic aid in three horses with a cranial mediastinal lymphosarcoma
  1. D. De Clercq, DVM,
  2. G. van Loon, DVM, PhD,
  3. L. Lefère, DVM and
  4. P. Deprez, DVM, PhD1
  1. 1 Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium


An ultrasound examination of the thorax of three horses which were performing poorly or had mild signs of colic showed that they had a cranial mediastinal mass and a pleural effusion. A cytological examination of the pleural fluid showed that it did not contain neoplastic cells. A histological examination of an ultrasound-guided core biopsy of the cranial mediastinal mass showed that in each of the three horses it was a lymphosarcoma.

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