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Feline hyperthyroidism
/content/chapter/10.22233/9781905319893.chap10
Feline hyperthyroidism
- Authors: Carmel T. Mooney and Mark E. Peterson
- From: BSAVA Manual of Canine and Feline Endocrinology
- Item: Chapter 10, pp 92 - 110
- DOI: 10.22233/9781905319893.10
- Copyright: © 2012 British Small Animal Veterinary Association
- Publication Date: January 2012
Abstract
Hyperthyroidism is a disorder resulting from excessive circulating concentrations of the active thyroid hormones triiodothyronine (T3) and/or thyroxine (T4). It has become the most endocrine disorder of cats and a disease frequently diagnosed in small animal practice. This chapters looks at aetiology, clinical features, diagnosis and treatment.
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Figures
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10.2
Hyperthyroid 11-year-old Domestic Shorthair cat, showing evidence of weight loss (a) and an anxious facial expression (b). (Reproduced with permission from
Thoday and Mooney, 1992
) © 2012 British Small Animal Veterinary Association
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10.2
Hyperthyroid 11-year-old Domestic Shorthair cat, showing evidence of weight loss (a) and an anxious facial expression (b). (Reproduced with permission from
Thoday and Mooney, 1992
)
/content/figure/10.22233/9781905319893.chap10.ch10fig3
10.3
Coat changes in hyperthyroid cats. (a) A 13-year-old Russian Blue with extensive matting. (b) A 14-year-old pedigree Domestic Longhair with evidence of alopecia. © 2012 British Small Animal Veterinary Association
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10.3
Coat changes in hyperthyroid cats. (a) A 13-year-old Russian Blue with extensive matting. (b) A 14-year-old pedigree Domestic Longhair with evidence of alopecia.
/content/figure/10.22233/9781905319893.chap10.ch10fig9
10.9
The progressive decline in serum alanine aminotransferase (ALT) concentrations in a series of hyperthyroid cats that became euthyroid with carbimazole at a dose of 5 mg/cat q8h. (Reproduced and modified with permission from
Mooney et al., 1992
) © 2012 British Small Animal Veterinary Association
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10.9
The progressive decline in serum alanine aminotransferase (ALT) concentrations in a series of hyperthyroid cats that became euthyroid with carbimazole at a dose of 5 mg/cat q8h. (Reproduced and modified with permission from
Mooney et al., 1992
)
/content/figure/10.22233/9781905319893.chap10.ch10fig10
10.10
Appearance of bilateral thyroid lobe W°lUv enlargement at the time of surgery. The external parathyroid glands are easily visualized as small spherical pale glands at the cranial pole of each thyroid lobe. © 2012 British Small Animal Veterinary Association
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10.10
Appearance of bilateral thyroid lobe W°lUv enlargement at the time of surgery. The external parathyroid glands are easily visualized as small spherical pale glands at the cranial pole of each thyroid lobe.
/content/figure/10.22233/9781905319893.chap10.ch10fig11
10.11
Unilateral (a) and bilateral (b) thyroid lobe involvement, as detected by thyroid imaging using pertechnetate. © 2012 British Small Animal Veterinary Association
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10.11
Unilateral (a) and bilateral (b) thyroid lobe involvement, as detected by thyroid imaging using pertechnetate.
/content/figure/10.22233/9781905319893.chap10.ch10fig12
10.12
Intracapsular thyroidectomy: The thyroid capsule is incised and the thyroid lobe removed. For the modified intracapsular technique the capsule is subsequently excised. © 2012 British Small Animal Veterinary Association
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10.12
Intracapsular thyroidectomy: The thyroid capsule is incised and the thyroid lobe removed. For the modified intracapsular technique the capsule is subsequently excised.
/content/figure/10.22233/9781905319893.chap10.ch10fig13
10.13
Extracapsular thyroidectomy: The thyroid lobe and capsule are removed whilst preserving vascular supply to the external parathyroid glands. For the modified technique, bipolar cautery is used instead of ligatures. © 2012 British Small Animal Veterinary Association
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10.13
Extracapsular thyroidectomy: The thyroid lobe and capsule are removed whilst preserving vascular supply to the external parathyroid glands. For the modified technique, bipolar cautery is used instead of ligatures.
/content/figure/10.22233/9781905319893.chap10.ch10fig14
10.14
(a) Appearance of a pertechnetate scan in thyroid carcinoma with multiple areas of uptake. (b) The same gland as visualized at the time of surgery. © 2012 British Small Animal Veterinary Association
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10.14
(a) Appearance of a pertechnetate scan in thyroid carcinoma with multiple areas of uptake. (b) The same gland as visualized at the time of surgery.
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