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[[Image:thyroid adenoma.jpg|right|thumb|125px|<small><center>'''Thyroid adenoma'''. Courtesy of T. Scase</center></small>]]
[[Image:thyroid adenoma.jpg|right|thumb|125px|<small><center>'''Thyroid adenoma'''. Courtesy of T. Scase</center></small>]]
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This is a disease seen most commonly in the cat. Since it was first diagnosed, the condition has become common in cats and is increasing still in prevalence. It is a very uncommon condition in dogs. Feline hyperthyroidism occurs due to the development of hyperfunctional thyroid nodules, which are benign. It is rarely associated with malignant thyroid neoplasia (>98% are a functional adenoma of the thyroid gland and many well be palpable, whilst on the small remainder are malignant).
This is a disease seen most commonly in the cat. Since it was first diagnosed, the condition has become common in cats and is increasing still in prevalence. It is a very uncommon condition in dogs. Feline hyperthyroidism occurs due to the development of hyperfunctional thyroid nodules, which are benign. It is rarely associated with malignant thyroid neoplasia (>98% are a functional adenoma of the thyroid gland and many well be palpable, whilst on the small remainder are malignant).