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Dr. Coates is a veterinarian based in the other “Sunshine State” – that's Colorado to the rest of you – where she lives and plays with a varied range of animals. She shares her professional and personal experiences, Monday through Friday, here on petMD's blog, the Fully Vetted. Log in for your daily dose of her insight and wisdom.

 

How to Handle Your Pet’s Lump (Let Me Count the Ways)

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July 14, 2011 / (9) comments


After reading my title I’ll bet you thought this was going to be a how-to kind of a blog post. But it’s not. This bump-y entry is going to be more like a rant than a prescription. And why? Because nothing calls out for greater disparity in veterinary decision-making than the lowly lump. 

 

Take the new client’s long-haired Chihuahua from Saturday morning: Batman was an un-neutered male with a lump just to the left and downward of his anus (nice spot, right?). "It came up so suddenly!" his owner claimed. But then, "that’s not a spot I try to look at on a regular basis," she admitted. (Nor, I confess, would I.)

Here’s more background: Butt-lumpy Batman had gone to see his regular veterinarian the morning before and gotten the "watch and wait" spiel. Another vet that afternoon said, "Let’s do everything!"

For the record, I was the third-opinion vet. Along the way, Batman had been treated to antibiotics and steroids, along with X-rays, ultrasounds and fine needle aspirates, all of which confirmed the presence of … well … nothing.

OK, so it wasn’t air in there, much less a space-sucking black hole, but it was, I ultimately deciphered, just a pouch of fat with maybe some swollen subcutaneous tissues. Nothing much, really. But that nothing much could have come up as a result of a variety of causes: trauma, lipoma (fatty tumor), or even a perineal hernia (intact males can experience a weakening of the muscular wall that separates the pelvic contents from the outside world, which leads to a hernia in this area).

"I don’t know for sure," I said, "because it doesn’t look like much, but it can’t hurt to have a surgeon take a look-see just to be sure it’s not worth exploring." But by the time Monday rolled around, the lump was almost gone. Good thing, too. It might’ve easily been subjected to a biopsy by an inquisitive surgeon.

So what’s the moral of the story? Stick to your first vet?

Not at all. Here’s mine: There are at least as many ways of dealing with a simple lump as there are veterinarians. Some will make you watch and wait (for what?) while others will slice and dice before you can say "Boo!"

Sure, this time the mass was an innocuous collection of swollen tissues (knowing Batman, he probably humped his toy too vigorously), but what if it had been a perineal hernia … or a Grade III mast cell tumor? Either of these would have been treated as a medical condition well worth every possible intervention.

And yet, "watch and wait" would have been best in this case.

Nonetheless, if it were my pet, I’d have yanked Batman out of his first veterinarian’s arms as quickly as this client had done. Because there are times when what an owner obviously needs — choices, at the very least — is worth more than the price of the relationship.

 

 

Dr. Patty Khuly

 

 

Pic of the day: lola's butt by hmmlargeart

chihuahua on ledge, dog butt, getting a second opinion, pet health, lump under skin in dog

 

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COMMENTS (9)
1
pet's lump
by lefty on 07/14/2011 01:14am

I am glad you posted this as it has been on my mind recently. Last fall my elderly 13 y/o cat had surgery for a tumor on his face, between his nose and his eye. My vet said it was rather invasive and nasty, but I did not opt for a path report. It resembled a photo you ran of malignant histiocytoma in a dog. A bit larger He recovered well, but this past spring he developed a lump on the side of his neck, same side as the previous tumor. He was in no distress, eating well, but seemed to be dropping a little weight. When I took him back, the vet looked very pessimistic, made various suggestions, metastatic workup, xrays, possible MRI, etc., but I had the impression he was shaking his head negatively. He thought surgery would be risky. I elected to take the cat home and just let him enjoy the rest of his life. The lump at that time was about 2cm across. In another month the lump was almost completely gone. The cat is eating voraciously and has filled out a bit, seems completely normal. If I palpate his neck deeply I can barely feel anything. I don't know what this was, but he seems to be a normal healthy cat at this time. Never was there an attempt to, for example, stick a needle in there and aspirate fluid and cells. Should this have been done? I don't mean to second-guess my vet, who is well thought of, and whom I have known and trusted for some years. We just don't always know what is going on and our decisions are often based on past experience more than anything else, i.e., subjective. In this case the wait and see option appears to have the right one. We just don't know, and can only go with the combination of gut feelings, whatever partial knowledge we have, etc. That is the best we can do

2
Also wondering
by H. Houlahan on 07/14/2011 01:56am

Pip has always been prone to small skin lumps, which move freely over the underlying tissue, and either fade away or eventually "crown" and can be expressed. Lipomas or cysts -- well, glorified zits, really. Mostly lentil-size to pea-size. The biggest one was at the base of her tail; a vet took a needle aspirate, found fatty cells, and said best not to mess with it because the location was tricky, she did not want to cut there. It got to the size of a shooter marble before getting ripe, which happened when we were at a dog trainer's conference.

One of the speakers, a high-profile veterinary "behaviorist," came upon me and PC out on the patio while we were happily squeezing out the stinking cheesy contents, turned a bit green, and beat feet. Guess we know why he went into telling people how to get their puppies to sit.

But my grossout story was not what I was wondering about.

Shortly after we returned from a recovery search deployment post-Katrina, Pip got what appeared to be the same sort of growth right between her eyes, in her white blaze. It came up fast, and the location was problematic, so our vet decided to take it. Also worried because of where we'd just been, and the sun exposure on a place where she had no pigment and very little hair.

We were all gobsmacked when the lab results came back -- squamous-cell carcinoma.

He'd gotten good margins, thankfully.

We all kind of flipped out, and next thing we did was have him take three recently-developed pea-sized lumps on her right flank. The vet was a bit paranoid. She looked like Frankendog. Of course those three were little fatty lipomas, totally harmless, and poor Pip was shaved half-naked and studded with staples at the start of winter. (Then there was the cone-escape, freelance staple removal incident, including panicky husband's drive through a blizzard to the Bendover Emergency Vet Clinic and Check Cashing Service in order to pay slightly more than the original surgery to have four staples replaced.)

So my question, not answered in any literature I can find, is how definitive that pathology on the first lump might have been. How many false positives for squamous-cell carcinoma?

It has been nearly six years, she's now 11 1/2, in great health, still gets the little lumps, and they still go away on their own or open up and are squeezed out, usually the former. I try not to overreact.

3
Lumpy Kitty
by TheOldBroad on 07/14/2011 07:13am

Any time a lump is found on a kitty, we fly to the doctor, usually for a fine needle aspirate. The cat doesn't notice and it will usually give everyone peace of mind.

If the vet is suspicious that it might not be harmless, we've been known to do a punch biopsy.

I'm a firm believer in Better-Safe-Than-Sorry.

4
by wikith on 07/14/2011 07:46am

I just had a patient last weekend with a marble-sized bump that came up on the size of his chest. He is one and a half so the owner decided to wait and see if it went away. Two weeks later he came to us, and it was the size of a softball and hard as bone. We took rads... lysis of a rib, with the tumor on both sides, explaining why he'd started coughing and having trouble breathing a few days ago.

Specialist confirms osteosarcoma. We're all devastated, but not nearly as much as his poor owner. At one and a half she'd never imagine this was something that was going to kill him. It's growing so fast and his breathing is worse each day, we're giving him days to weeks.

Lumps suck, I hate treating them because I feel it's so nebulous. So many are benign cysts or lipomas and the owners complain that we charge them for the aspirates or biopsies even though this is the nth lump... but then we get a case like this or a mast cell tumor or what have you and every little blip starts to look like something that could be nasty. Fast-growing tumors like on my patient are a no-brainer, but there's other ones like my friend who had the "lipoma" removed from her dog when it started to get too big and there was a nerve sheath tumor encased in fat.

I guess the reason there are so many different recommendations is that there is no right answer. I think one of my vet school professors told me that when there are lots of ways to approach a problem it means there's no good way. All we can do is try to communicate the options and help the owner make a decision that fits their wallet and their risk aversion.

5
Lumps
by CVICU RN on 07/14/2011 09:05am

Many years ago my daughter called from college to say that her little 5 lb silver poodle had a very hard mammary lump "about the size of one grit" (that's less than 1 mm for you non-southerners). By the time she came home 3 days later it was the size of 2 grits. I have an excellent surgeon at my general vet and so I took little Molly to the vet the very next morning ready to go into surgery. Every vet there was very pessimistic about the outcome. Little Molly was 6 years old and had been a breeder for a show breeder before coming to us, so she was high risk for breast cancer. The surgeon took the lump, mammary gland and all the lymph nodes close-by. The pathology came back to be the worst, most agressive cancer - I've forgotten the exact name now. But we expected to find metastatic disease for the first months and years afterward. Molly lived to the ripe old age of 16 and died 4 years ago. I still take time to thank the surgeon and tell all the new vets coming into the practice our success story. And the older vets say that's the only one they've seen survive - but because the dogs weren't brought in until the cancer was too advanced. My daughter saved her little Molly by carefully examining her often because she knew she was high risk for cancer. The vet had the opportunity to get to her in time to save her, and he did aggressive, skillful surgery. I'm glad we were aggressive because it was pretty straight forward and the vet agreed. Sometimes it's important to let the vet know you want to be aggressive. For us 3 days was long enough to wait and see. Unfortunately most lumps so tiny are not this easy to decide on. Mommy guilt has to be the worst thing about having these little souls to care for. Just a little delay can cause years of guilt and second thinking decisions. I'm afraid I have to opt on the side of over reacting!

6
Ironic (yet again)!
by julesb4isu on 07/14/2011 01:23pm

This is super ironic timing! We just had a client in yesterday with her cat with a huge(!) mass on/in its neck...that had clearly been there a while (the referring vet had told her to see us approximately two months ago). The first thing she said to our surgeon when he walked in the door was "I just want it to go away" (Dont we all). Of course, as a surgeon he would have loved to take that unknown-mass out, the problem was that it was likely connected to vital blood vessels, as well as the many other structures necks tend to have. So he said that he would be willing to biopsy it, but a surgical removal would be dangerous and likely futile since clean margins would be nearly impossible. Originally, she was willing to have the biopsy, but she contacted the "Saw Shop" in town (thats not really its name, its just an un-boarded surgeon whose messes we seem to clean up a lot) who said he would be willing to take out said mass. I feel for this owner because I would want that mass gone too, but I worry for her poor cat's well being in the process.

7
Lumps,bumps
by My5beagles on 07/14/2011 06:42pm

I tend to overreact to lumps. I want to know what they are immediately. I get every one of them checked out. It's better to be safe than sorry later. When I adopted Lilly (one year ago today ironically) she came with a huge (peach size) tumor. Sadly the mammary tumor was cancer and very aggressive. It will always irritate me that people knew about this huge tumor and did nothing for her. Had the tumor removed and honestly forgot about the bad news on the type of tumor. She was doing wonderfully and a complete joy until New Years Day. A little cough. Not much really. One cough. But it spooked me and xrays confirmed the sad news. It was everywhere. That wonderful little beagle lived two more months before I gave her the peace she deserved. I get every lump or bump checked...period. My beagles deserve nothing less.

8
The same vet every time?
by arlo muttrie on 07/17/2011 07:19pm

Is it important to see the same vet every time? Is it more important to have the same set of eyes each time, or do you want a fresh view?

Weigh in:

http://theassassinbug.com/2011/07/17/the-assassin-bug-poll-a-new-feature/

(the only public health blog written by a veterinarian and featuring Brigitte Bardot and Anita Ekberg)

9
by CathyA on 07/22/2011 07:49am

Lefty asks: "Never was there an attempt to, for example, stick a needle in there and aspirate fluid and cells. Should this have been done?"

AFAIC, FNA (fine needle aspirate) is one of those things that, if positive, is very informative, but if negative, doesn't answer the question of malignancy. It takes multiple sticks and may not find anything, even if something is there. Punch biopsy is better. But then there's the issue of making post holes in the lump and perhaps spreading cancer cells around via blood stream. The best of all worlds would be punch biopsy with results while patient is still on the table. Probably rare.

So, should he have done it? Don't know. But I think it should have been discussed, then you could have heard why or why not your vet didn't recommend it.

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About fully vetted

Patty Khuly, VMD, MBA

Photo of Dr Khuly

Dr. Khuly is a former petMD blogger and small animal veterinarian in Miami, Florida, where she practices medicine at Sunset Animal Clinic and serves on the board of the South Florida Veterinary Medical Association. She is a graduate of Wellesley College, the University of Pennsylvania School of Veterinary Medicine, and The Wharton School of Business.

As a significant sideline, she writes...a lot. She authors pet health columns for USA Today, The Miami Herald and Vetstreet. She also writes a popular monthly column for Veterinary Practice News and serves as regular contributor to Veterinary Economics, The Bark, and the Veterinary News Network.

Dr. Khuly lives in South Miami with her brood of hens, goats, dogs, cats...and humans.

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