| HYPERTHYROIDISM IN CATS, THYROID NEOPLASIA | |
| Description | Hyperthyroidism is the most frequently-diagnosed feline endocrinopathy. Hypersecretion of thyroid hormone is usually due to adenoma or adenomatous hyperplasia and is less often caused by adenocarcinoma. The enlarged thyroids can be palpated close to the trachea anywhere from caudal to the larynx to the thoracic inlet; in about 3/4 of cases both thyroid lobes are enlarged. Hypertrophic cardiomyopathy that might lead to signs of heart failure can accompany hyperthyroidism. Adenocarcinomas can metastasize. |
| Species | Feline |
| Signs | Abnormal behavior, aggression, changing habits, Abnormal lung or pleural sounds, Alopecia, Anorexia, Arrhythmia, Ataxia, Atrial premature beat, Atrial tachycardia, Bundle branch block, Change in voice, Congestion oral mucous membranes, Coughing, Decreased, muffled, lung sounds, Dehydration, Diarrhea, Dryness of skin or hair, Dullness, Dyspnea, Excitement, Fever, First degree atrioventricular heart block, Gallop rhythm, Generalized weakness, Heart murmur, Hematuria, Hyperesthesia, Increased respiratory rate, Increased strength of pulse, Laryngeal, tracheal, pharyngeal swelling, Matted or dirty hair, Muffled, decreased, heart sounds, Neck swelling, Neck weakness, Oily skin, hair or feathers, greasy, Polydipsia, Polyphagia, Polyuria, Propulsion, Rough hair coat, Second degree atrioventricular heart block, Seizures or syncope, Sneezing, Steatorrhea, fatty stools, feces, Subcutaneous crepitation, Tachycardia, Trembling, Tremor, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Unusual or foul odor, stools, feces, Ventricular enlargement, Ventricular premature beat, Vomiting or regurgitation, Weak pulse, Weight loss |
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