Malignant schwannoma of the brachial plexus in a dog.
A 4-year-old Labrador bitch was presented for veterinary examination with a history of lameness and muscle atrophy of the left forelimb. On clinical examination a painful mass was detected medial to the left shoulder joint. Radiographs of the shoulder showed mineralisation of this mass. Exploratory surgery revealed a tumour involving the radial nerve, axillary nerve and the trunk of the median and ulnar nerves. Histopathologic diagnosis was a malignant Schwannoma.
D000818:Animals; D001917:Brachial Plexus / Q000473:pathology*; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D005260:Female; D009442:Neurilemmoma / Q000473:pathology / Q000662:veterinary*