in ten neutered crossbred cats 10 to 14 years old and of both sexes , hyperthyroidism was evidenced by hyperactivity , weight loss despite increased appetite , frequent defecation with bulky stools , thirst , polyuria , moderately elevated temperature , increased heart rate and size , sometimes with murmurs and arrhythmias , and palpable enlargement of one or both thyroid lobes .
C0020550
hyperthyroidism
C0040132
thyroid