An intrathoracic malignant peripheral nerve sheath tumor in a dog

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Essman SC, Hoover JP, Bahr RJ, et al.

Vet Radiol Ultrasound 2002;43:255-259.

A 7-year-old, neutered male Labrador Retriever presented for a persistent, productive cough and regurgitation. Radiography, ultrasonography, and computed tomography confirmed a large, smoothly marginated intrathoracic mass causing tracheal compression. The mass was removed via a thoracotomy, and a malignant peripheral nerve sheath tumor, most likely originating from the ventral spinal nerve roots, was confirmed using immunohistochemistry.