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Pet Forum / Miscellaneous / Animal Health / July 2005



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Chylothorax, Lymphoma and diagnosing

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littleboyblu87@yahoo.com - 25 Jul 2005 05:31 GMT
A friend's cat was recently diagnosed with Chylothorax. The doctors ran
some tests but can't find a cause. An ultrasound was done on the heart
and it looks healthy.

I understand that many cases of Chylothorax are idiopathic, but it
makes me wonder about something. Is it possible that this cat has
Lymphoma that just hasn't been diagnosed/found? With animals, isn't it
harder to detect cancer because they don't have all the tests and
screenings like they do with people? People over a certain age often go
in once a year for cancer screenings (mammograms, etc.), but animals
don't have that luxury.
Mrs Katherine Nash - 25 Jul 2005 06:55 GMT
>A friend's cat was recently diagnosed with Chylothorax. The doctors ran
>some tests but can't find a cause. An ultrasound was done on the heart
[quoted text clipped - 7 lines]
>in once a year for cancer screenings (mammograms, etc.), but animals
>don't have that luxury.

It is just as easy to run all the same tests on animals, you just have to be
willing to pay for them. If you are worried that it could be lymphoma you have
to come out and say this to your vet, otherwise they are unlikely to ask you
about the tests as it puts people who cant afford it in an awkward position.

Vanessa
buglady - 25 Jul 2005 16:50 GMT
If you are worried that it could be lymphoma you have
> to come out and say this to your vet, otherwise they are unlikely to ask you
> about the tests as it puts people who cant afford it in an awkward position.

.........If there are tests that can be done to definitively diagnose an
illness the vet is bound by medical ethics to tell you.  The owner deserves
the opportunity to make a choice about the matter.

buglady
take out the dog before replying
josh - 30 Jul 2005 18:41 GMT
> otherwise they are unlikely to ask you
> about the tests as it puts people who cant afford it in an awkward
> position.

Gotta disagree with you there.  You always offer the Cadillac but sell them
the Yugo if that's all they can or are willing to do.
Sharon - 30 Jul 2005 20:26 GMT
> Gotta disagree with you there.  You always offer the Cadillac but sell
> them the Yugo if that's all they can or are willing to do.

Absolutely. To assume that someone can't afford what is needed is perhaps
one of the biggest faux pas in veterinary medicine. All options should be
laid out for the owner and then the onus is put on them to decided what they
can afford, or what *they* think is best for their pets.

We've had clients who drive sports cars and dress nicely who truly can't
afford some tests. Then there are those who drive '85 Chevys and look like
they don't do laundry pull out a wad of bills and ask to have everything
necessary be done. Personally, as an owner I'd be offended if I wasn't given
all of the options because it was perceived I couldn't afford it. I'd wonder
if they thought I was stupid as well.

-Sharon
buglady - 31 Jul 2005 12:01 GMT
. Personally, as an owner I'd be offended if I wasn't given
> all of the options because it was perceived I couldn't afford it. I'd wonder
> if they thought I was stupid as well.

......yeah, amen to that, and I'd be gone!

buglady
take out the dog before replying
buglady - 25 Jul 2005 16:45 GMT
> A friend's cat was recently diagnosed with Chylothorax. The doctors ran
> some tests but can't find a cause. An ultrasound was done on the heart
[quoted text clipped - 3 lines]
> makes me wonder about something. Is it possible that this cat has
> Lymphoma that just hasn't been diagnosed/found?

...........Could be, but if they've already done ultrasound of the area it
may not be lymphoma.
http://www.vet.uga.edu/vpp/clerk/Rockwell/
Differential diagnoses for chylothorax in cats.
   * Cardiomyopathy
   * Heartworm disease
   * Idiopathic
   * Lymphangiectasia
   * Mediastinal neoplasia (lymphoma, thymoma)
   * Trauma and rupture of the thoracic duct

Ultrasonography and echocardiography may be useful in identifying an
underlying cause of the effusion, such as cardiomyopathy or mediastinal
neoplasia.

.......have they examined the fluid microscopically?
http://www.vetinfo.com/catrespir.html
By withdrawing some of the fluid from a pleural effusion and examining it
for
cells, protein levels, color, odor and specific gravity, it is often
possible to make a pretty good guess as to the cause of the fluid
accumulation. If the fluid contains cancer cells, if it is a true chylous
exudate or if it looks like and smells like pus examination of the fluid
gives a strong clue as to what is going on.

Feline lymphomas:  http://maxshouse.com/feline_lymphoma_and_leukemias.htm

>With animals, isn't it harder to detect cancer because they don't have all
the tests and
> screenings like they do with people? People over a certain age often go
> in once a year for cancer screenings (mammograms, etc.), but animals
> don't have that luxury.

........it's not a matter of luxury.  There is no PSA test for prostate
cancer for dogs. Neuter them and incidence goes down.  Bitches don't need
mammograms if they've been spayed as the incidence goes way down.  Dogs/cats
don't get bowel cancer - a very rare occurence at least.  The only thing
that's readily available for humans and not necessarily for pets is an MRI.
If one looked around though, there might be a facility available that does
them on pets on off hours.

buglady
take out the dog before replying
 
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