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Congenital hypothyroidism in Scottish Deerhound puppies.

Robinson, W.F., Shaw, S.E., Stanley, B. and Wyburn, R.S. (1988) Congenital hypothyroidism in Scottish Deerhound puppies. Australian Veterinary Journal, 65 (12). pp. 386-389.

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Two Scottish Deerhound puppies had clinical and pathological features consistent with the diagnosis of congenital non-goitrous hypothyroidism. They were from separate litters, but were the progeny of the same sire and dam. The puppies were smaller, had shorter limbs and shorter, broader heads than their littermates. They also had histories of weakness, difficulty in walking and somnolence. A characteristic radiographic feature was the absence of epiphyseal growth centres. Both had depressed serum thyroxine (T4) levels and one did not respond to exogenous thyroid stimulating hormone. On necropsy, the thyroid glands were small, the follicles varied in size and contained little or no colloid. The adenohypophysis contained many cells with markedly vacuolated cytoplasm. It is suggested that the clinicopathological pattern is the result of a primary thyroid abnormality. Possible mechanisms include either primary thyroid hypoplasia or an unresponsiveness to thyroid stimulating hormone.

Item Type: Journal Article
Murdoch Affiliation(s): School of Veterinary Studies
Publisher: Wiley-Blackwell
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