Anyone hear about similar symptoms - 2 females with ongoing URI both grow mammary tumor in one week ?

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3girls

Post   » Sat Nov 21, 2020 9:14 pm


Hi Everyone, I am desperately looking for anyone who have seen similar symptoms and could help. We have 3 female guinea pigs (Abyssinian, smooth and Rex), all 2.5 year old living together. 3 weeks ago they all started sneezing, Winnie more than two others - Bramble and Honey. Winnie had also slightly crusty eye. Winnie was sneezing every 15min and others twice in a an hour.

Vet prescribed Bactrim for all 3. After 7 days on Bactrim they were slightly better and sneeze once in a few hours. Eye was almost normal. Vet advice to take Bactrim 7 more days. After 3days I call him again telling that they are slightly worse Winnies eye more crusty again, more sneezing, small discharge form the nose) and Honey now had one eye red and swollen slightly. Vet changed med. to Baytril for all but low dose 0.2ml (2.5%oral solution). It helped again - slightly only, after 7 days dose was changed by another vet to 0.5ml (my pigs are around 1.3kg each).

After 6 days they were getting much better, Bramble (the only one whiteout eye infected) looks healthy (no sneezing no other symptoms), Winnie sneezing once in a 2 hours, Honey no sneezing and eye almost looks normal. And then we noticed Winnie has a large lump under her nipple, the size of a flat walnut. We are sure it wasn't there week ago as we were checking on his tummy then (me not vet as all consultations were by phone due to Covid), or it was very small. It grow really fast. I have checked other piggies they were ok. I was last night.

Today Winnie (and only she as others look healthy) was in the clinic and vet said it is probably mammary tumor and needs to be removed. They booked surgery for Thursday. We were shocked, sad but hopeful. Winnie and Honey were left on Baytril, Honey till Monday to make sure the eye looks good and Winnie until surgery).

Tonight I have checked on Winnie and she has a small tumor in the same place where Winnies, just under right nipple. I am almost sure it wasn't there 36 hour ago. Don't know how explain this. Why they are both having exactly the same symptoms including tumor. Tumor looks not painful as they not care about touching it, the skin around look normal, no redness, no signs of infection on the skin - just lump.

The last 3 weeks they all were energetic as always, eating a lot, pooping normal, chasing and bossing each others. No change in anything. Winnies tumor looks bigger than yesterday so its visibly growing. Yesterday was softer and more loosely moving under the skin, now more attached and harder, more round/full. I have separated healthy Bramble from others and will call vet Monday morning.

Now I am looking what connection could be between respiratory infection symptoms and mammary tumors and cant find anything about guinea pigs. If anyone hear anything similar or had similar experience I will be very very grateful!

ps. I am sorry for my grammar, English is not my first language, hope its readable.

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Lynx
Celebrate!!!

Post   » Sat Nov 21, 2020 9:44 pm


You write excellently. I had no problem following your description.

I do not know of any connection between a URI and mammary tumor. Sometimes due to the timing of an illness, it can seem like it is related but it would only seem so if it was not a mammary tumor but instead was some sort of infection that had moved to that area. I don't recall anyone reporting an infection that might be mistaken for a mammary tumor.

When the tumors are removed, you could (if you wanted to) have a biopsy done of the tumor to gain more information. A biopsy would rule out an infection. One would think the antibiotic you have been giving would treat an infection.

I tend to think this is simply a coincidence.

3girls

Post   » Sun Nov 22, 2020 12:09 am


Thank you Lynx, I was thinking also that maybe this is not a mammary tumor? Vet only checked Winnie and only by looking on her, (he said he is suspecting its mammary tumor) no test was done as we agreed it needs to be removed. He wasn't specialist on guinea pigs (he had some experience but not on surgeries and less than vet who will be doing surgery on Thursday). I am trying to find if its anything else which could cause symptoms like URI and lupms in mammary area. Their URI is stubborn but not severe, they were mostly sneezing Winnies very small nose discharge is now gone. no breathing problems, no lost of appetite, and they are active as normal, fur looks good as always. I will try to consult on Monday with vet who will be doing surgery, until then hoping to find some clues, if there is any other illness than tumor causing this kind of symptoms I could ask for some tests etc.

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Lynx
Celebrate!!!

Post   » Sun Nov 22, 2020 9:11 am


It is very reasonable to diagnose it as a mammary tumor. I think a quick check to perhaps confirm that could be done with a fine needle aspiration to see what is inside the lump.

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