Acquired myasthenia gravis in a cat with thymoma.
A 4-year-old castrated Abyssinian cat was evaluated for profound neuromuscular weakness. Results of electromyography and repetitive nerve stimulation tests were normal. Thoracic radiography revealed a cranial mediastinal mass, which was excised and identified as a thymoma. Serum acetylcholine receptor antibodies were detected at high concentration, supporting a diagnosis of acquired myasthenia gravis. Clinical signs of disease responded to treatment with pyridostigmine and corticosteroids.
Scott-Moncrieff
J C
JC
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.
Cook
J R
JR
Lantz
G C
GC
D000818:Animals; D002371:Cat Diseases / Q000175:diagnosis*; D002415:Cats; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications / Q000662:veterinary*; D009157:Myasthenia Gravis / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D013945:Thymoma / Q000150:complications / Q000662:veterinary*