Sunday, July 12, 2009

Veneral Tumor in Dogs?


One interesting nature about dogs is that unlike human, they do not simply mate to serve their "needs". The female only allows the male to breed twice a year during heats. And, because of this, they rarely get diseases transmitted through copulation. One exception is the Transmissible Venereal Tumor or TVT. The word venereal itself described the mode of transmission of this disease, but in actual case, the disease can be transmitted through contact as some dogs might have the tumor growing on the nose (transmitted when they lick the tumor affected parts).

TVT was first described by Russian vet M.A. Novinsky (1841–1914) in 1876 when he successfully demonstrated that the tumor could be transmitted from one dog to another by infecting them with the tumor cells. In fact, it is very easy to be transmitted.

In our practice, we have successfully treated dogs (male & female) with TVT. Chemotherapy is very effective against TVT. Some people might use radiation or surgery but chances are the tumor will grows back again.









Very easy to spot the tumor which grows outward from the vagina. Most of the time, the owner will first complaint of bleeding from the hind. I have taken photos from the male dog's but forgot where did I saved them. Anyway, in males, the tumor will grow on the penis and the inner part of the prepuce. You have to actually pull the prepuce back to reveal the cauliflower like tumor in the inner penis. Normally, there will be blood dripping from the prepucial opening and owner may misunderstood this as blood in the urine.








The treatment is very simple, safe and effective if done correctly. Any chemotherapy drug is very dangerous and must be handled by trained veterinarian. In fact, some of them can cause your skin to slough if in contact with your skin. The photo above showed the same dog after the first chemotherapy. The tumor started to shrink just after one treatment but it's not enough to initiate only one treatment. It has to be a series of treatment depending on what drugs to be used.







There you have it! Complete recovery of the dog from the tumor after the third chemotherapy. Actually, this dog was given four chemotherapy session in order to complete the series of chemotherapy treatment designed for her.







In the male dogs, the tumor almost always occurs in the inner part of the penis. It can easily be seen once you pull the prepuce back until the end of the penis. The structure is something like a cauliflower usually with some bleeding. The most obvious sign to look for in a male dog with TVT is dripping of blood from the preputial opening.













Saturday, July 11, 2009

A Cat With A Heart, Indeed!



Have you seen a cat with its heart outside the body?!! Well, tada..... here it is. First time in the blogsphere. You can't find this anywhere else, exclusively here only. What's the chance of getting a heart shape on your skin? I can't even imagine the probability.

Friday, July 10, 2009

Corneal Ulcer In Dogs.

Today, I'm going to talk about corneal ulcers, especially in dogs. Not that cats do not get corneal ulcers, but, 80% of the cases I've seen so far happened in dogs. The causes of corneal ulcers? Well, the most common one is due to scratching either during fights, or the dog's been scratching the eye due to irritations. This happens mostly in those small breed dogs with flat face and big, bulging and protruding eye balls, e.g. shih tzu, pekingese and pugs. And, we do get lots of corneal ulcer cases, at least, I mean at least 2 to 3 cases a month. Some of them involved only the corneal surface. And, some of them got worst and the corneal sometimes ruptured, releasing the membrane underneath it (what we called the descemet's membrane which was named after the French physician Jean Descemet). When this happened, you could actually see the membrane bulging out from the cornea. This is what we terms as descematocoel.

In this photo, the ulcer is right in the middle of the eye. Sometimes, we could estimate the age of the ulcer by knowing the process of ulcer formation although it is not very accurate.


This is another Shih Tzu with a corneal ulcer in the middle of the left eye. The ulcer was not too bad compared to the one above. Sometimes, we just give the owner eye ointment and send the dog home. But, in severe cases, we have to conduct a surgery to pull the third eyelid of the dog to cover the unhealing ulcer so that the ulcer will be protected and have time to recover.


This is what we call a third eyelid flap whereby the third eyelid is pulled to cover the eye and temporarily suturd to the upper eyelid. The flap may have to be in place like that for up to 2 weeks. After 2 weeks, we'll have to release the flap and check the ulcer again. If everything turns out to be fine, then, the flap is removed.


Below is the ulcer after the removal of the 3rd eyeli flap. The ulcer is healing nicely and it clearity of the cornea it becomes normal once the ulcer has completely healed in another 1 to 2 weeks' time.


The most serious problem with unhealing corneal ulcers is uninviting bacterial infections. Some bacteria can produce a type of enzyme that prevents or melt the corneal. This would leads to unhealing ulcer. A much more major surgery have to be done to correct this condition.

Saturday, June 20, 2009

Keep on blogging, Dr. Kenny

A friend of mine actually read my blog the other day. He was amazed with the contents as he said my blog is very informative and it's hard to get information straight from a vet coupled with real life photos. He asked me to continue blogging as my blog has a potential to attract readers, especially the pet owners. My writings might one day help somebody's pet, he said. Well, I must confess. I'm a bit lazy to write especially after busy and hectic days. Nevertheless,I'll do my best to entertain my readers.

Friday, October 17, 2008

Bladder Stone In Dog?

It's amazing how dogs and cats shared some similarities with us human. Apart from the daily do's like eating, drinking and sleeping, they also have some similar diseases, or disease conditions, so to speak. Recently, we had a dog with bladder stone. The owner was quite surprised to know that dogs can have bladder stones. In the mind of the public, you'll never thought of this to be happened in a dog. Well, yes, it happened. Like they say, SHIT happens.

We had quite a number of urolithiasis (bladder stone) cases in a year. Most dogs were from the pedigree breed. Breed predisposed you might asks? Well, we're not sure but one thing for sure is that, food does have a role in urolithiasis.

O.K. back to this case. The dog's name was Lily. It's a 2 year old female Shih Tzu, weighing around 5.4kg. Lily's owner noticed blood stain in her urine. She was also getting a bit irritated each time she wanted to release the urine due to pain. Her urination was also becoming more frequent than usual. Sometimes owner may ask a funny question regarding bladder stone. The million dollar question is : "Can my dog gets bladder stone from ingesting stones?". Well, I leave that to you guys.

Anyway, upon physical examination, Lily was fine, except for the blood in the urine. Sometimes, if the bladder stone was big enough, we could actually palpate the stone if the bladder was not filled with urine. But, in Lily's case, she was quite fat and palpation of the stone was not possible.

Later, x-ray was done and surely enough, a stone was visible in the x-ray film. I'm sorry I couldn't post the x-ray here at the moment as I did not take a photo on the x-ray.

So, Lily's owner had decided to have her operated to remove the bladder stone.







Figure 1 : Lily's half fulled bladder with 2 stay sutures in placed.





Figure 2 : The bladder stone being removed from Lily's bladder.






Figure 3 : The urolith, which was removed from Lily's bladder, was later identified as struvite ( a type of urinary stone in dogs and cats ).

There, you have it. The story of Lily the Shih Tzu. Although the stone has been removed, there's always a chance of recurrence if the owner do not take care of Lily's diet and lifestyle.