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 Koi Tumour

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PostSubject: Koi Tumour   Koi Tumour Icon_minitimeTue Jan 22, 2013 2:26 pm

Yesterday afternoon when walking past the pond I noticed with alarm there was a 75 cm koi lying at the bottom of the pond. Grabbing the net and getting it to the surface I saw it was dead. This was real strange as the morning when I fed them all the koi were eating.

As none of the koi were flashing I thought that there could not be any paracite problems. I have had some PH spikes lately touching on 9.1 and thought that maybe the koi died from PH poisening. Inspecting the gills there were no problems and they were beautiful and red. I then noticed there was some blood oozing from the anus and decided to not bother with a scrape but rahter do an autopsy and this is what I found:

The koi was full of eggs but the stomach was not bulging. I previously had a koi die due to being egg-bound and this was not the same. I immediately noticed that the eggs were full of blood:

Koi Tumour Koi1_zps69a4ae5b

Just under the fin on the left side of the photo I noticed a white spot and pressing on it I felt something hard. I decided to investigate a bit closer:

Koi Tumour Koi3_zps6cda48c4

I carefully started open up the spot and the buldge became very distinct:

Koi Tumour Koi4_zps6ce14336

And the bulge grew the further I went. It was at this stage that I realized that this is a tumour that has developed right inside the egg sack:

Koi Tumour Koi5_zps2104fb4b

Finally I got it out and you can clearly notice the blood vessels where it was attached to the inside of the fish:

Koi Tumour Koi7_zps4b61838d

When I seperated the tumour it was about 7 cm in diameter.

Koi Tumour Koi8_zpsa512126c

In handling the tumour I could feel some rock hard bits on it and decided to cut it open:

Koi Tumour Koi9_zps24b92ab5

The inside of the tumour was rock hard with what seemed like a muscle type substance and with hard "sand" type grains about the size of course salt.

Koi Tumour Koi10_zpscb9edaeb

I think it was inevetable that the fish would have died but interestingly it showed no ill affects up front and had zero bulges on its side.

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PostSubject: Re: Koi Tumour   Koi Tumour Icon_minitimeTue Jan 22, 2013 2:39 pm

Sorry about your loss. Sad

Thanks for the good quality pictures.

Very interesting.
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PostSubject: Re: Koi Tumour   Koi Tumour Icon_minitimeTue Jan 22, 2013 5:06 pm

thanks for the excellent pics....sorry for your loss Sad
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PostSubject: Re: Koi Tumour   Koi Tumour Icon_minitimeWed Jan 23, 2013 6:15 am

Thank you foe sharing this with us ,

Some very nice pictures.

Sorry that you lost one of ur kois Crying or Very sad
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PostSubject: Re: Koi Tumour   Koi Tumour Icon_minitime

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