Difference between revisions of "Ornamental Fish Q&A 08"

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The thyroid of most fish is a diffuse organ located along the floor of the gill chamber, but thyroid tissue can also be found in the spleen, heart, and cranial kidney. Goiter may be difficult to distinguish from thyroid carcinoma, and was mistakenly described as such when initially found in salmonids on iodine-deficient diets.
 
The thyroid of most fish is a diffuse organ located along the floor of the gill chamber, but thyroid tissue can also be found in the spleen, heart, and cranial kidney. Goiter may be difficult to distinguish from thyroid carcinoma, and was mistakenly described as such when initially found in salmonids on iodine-deficient diets.
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A similar syndrome in sharks responds to thyroxine therapy, presumably by restoring the negative feedback loop on thyroid-releasing hormone and thyroid-stimulating hormone production.
 
A similar syndrome in sharks responds to thyroxine therapy, presumably by restoring the negative feedback loop on thyroid-releasing hormone and thyroid-stimulating hormone production.
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Latest revision as of 22:28, 30 October 2011


Mansonlogo This question was provided by Manson Publishing as part of the OVAL Project. See more Ornamental Fish Q&A.




Ornamental Fish 08.jpg


A slippery dick from a large marine exhibit aquarium is selected at random for routine health screening. A large bilateral nodular swelling at the base of the gills and extending upward along the lower gill arches is found. A histologic section is shown.


Question Answer Article
What is your diagnosis? Link to Article
What are some treatment options? Link to Article


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