Thyroid Adenocarcinoma

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Thyroid Adenocarcinoma

Hewey is an 8 year old MN Labrador Retriever who had sugery last fall to remove a mass from his ventral neck region – u/s at the time showed that the mass was not coming from the thyroid (both glands normal)

Hewey is an 8 year old MN Labrador Retriever who had sugery last fall to remove a mass from his ventral neck region – u/s at the time showed that the mass was not coming from the thyroid (both glands normal)

– the mass was removed at OVC in Guelph
– histopath showed thyroid adenocarcinoma – thought to be ectopic thyroid tissue with no gross communication with the thyroid glands
– Hewey has done well and I performed a recheck scan yesterday
– left thyroid gland appears normal (as it did last fall)
– right thyroid gland was difficult to identify as there is a hypoechoic nodule present in the region Could this be the start of a thyroid tumor? Considering Hewey’s history, this would be my top differential.

I was not going to stick a needle in this (a little chicken) But am going to monitor for change. The nodule is not palpable and is just under 1cm in diameter. The owners are elderly and I am not sure if the have the $$ to put Hewey through another surgery.

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Comments

Anonymous

Its pretty vascular for
Its pretty vascular for normal thyroid especially when comparing to the left lobe. You can use a 25-27g needle and have an ice pack and compression afterwards when doing the fna and I think it warrants it here given the hx. If this is carcinoma starting up its early so the sx should be minimal but we know how that changes place to place.

Anonymous

Its pretty vascular for
Its pretty vascular for normal thyroid especially when comparing to the left lobe. You can use a 25-27g needle and have an ice pack and compression afterwards when doing the fna and I think it warrants it here given the hx. If this is carcinoma starting up its early so the sx should be minimal but we know how that changes place to place.

Anonymous

Would parathyroid enlargement
Would parathyroid enlargement be another rule out?

Anonymous

Would parathyroid enlargement
Would parathyroid enlargement be another rule out?

Anonymous

I think that would be also a
I think that would be also a good rule out. No hypercalcemia in this pet right now. I also thought of the possibility of a thyroid cyst but appears quite vascular.

Anonymous

I think that would be also a
I think that would be also a good rule out. No hypercalcemia in this pet right now. I also thought of the possibility of a thyroid cyst but appears quite vascular.

Anonymous

Its possible but I wouldnt
Its possible but I wouldnt think it would be this prominent without hypercalcemia but anything is possible I guess. Given the history…common things are common. An fna should tell you either hyperplasia vs carcinoma vs neuroendocrine tumor (parathyroid).

Anonymous

Its possible but I wouldnt
Its possible but I wouldnt think it would be this prominent without hypercalcemia but anything is possible I guess. Given the history…common things are common. An fna should tell you either hyperplasia vs carcinoma vs neuroendocrine tumor (parathyroid).

Anonymous

Is the ice pack a routine
Is the ice pack a routine tool you use after FNA? and what is the reason? and do you use it in any other FNA situation?

Anonymous

Is the ice pack a routine
Is the ice pack a routine tool you use after FNA? and what is the reason? and do you use it in any other FNA situation?

Anonymous

Ice is recommended because
Ice is recommended because the thyroid gland is extremely vascular and serious bleeding can occur when you stick a needle in it or biopsy. The ice will help vasoconstrict the blood vessels and hopefully lessen the chance of a serious bleed.

I do not routinely use ice otherwise but will apply pressure if possible (ex. liver biopsy) for a few minutes to help with hemostasis.

Anonymous

Ice is recommended because
Ice is recommended because the thyroid gland is extremely vascular and serious bleeding can occur when you stick a needle in it or biopsy. The ice will help vasoconstrict the blood vessels and hopefully lessen the chance of a serious bleed.

I do not routinely use ice otherwise but will apply pressure if possible (ex. liver biopsy) for a few minutes to help with hemostasis.

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