tpvets_logo.jpg (2726 bytes)TOA PAYOH VETS

Date:   05 January, 2008
Focus: Small animals - dogs, cats, hamsters & rabbits.


*10 a.m - 5 p.m (Mon - Sun, except Sat). Dr Sing. By Appointment Only.

*6 p.m - 10 p.m (Mon - Fri). 10am - 5pm (Sat). Dr Jason Teo. House-calls available.

Appointment preferred.
Tel: 6254 3326, 9668-6469
Fax: +65 6256 0501
Expatriate rentals in Singapore
Toilet training your puppy in Singapore - Dr Sing's research book to be published in Dec 2007.

Interesting case studies/Be Kind To Pets pictures
The hamster walked with her right hind leg skywards
Dr Sing Kong Yuen, BVMS (Glasgow), MRCVS

Hamster. Inflammed and irritating large skin tumour near the vulva. Toa Payoh Vets.
All animals are anaesthesized before surgery to avoid causing pain. 

However, in this case, the hamster was thin due to a big loss of appetite and would likely to die under general anaesthetic gas. 

She had this glistening big skin tumour for some time and was not eating when brought to the Surgery.

She could not walk properly as the tumour irritated her. She walked with the right hind leg pointing 45 degrees skywards.
"No anaesthesia?" the 2nd-year Murdoch University vet student was surprised when he saw me getting ready to snip the tumour of the hamster.

She hopped and lumbered as she could not put her right hind leg down normally. She could not   sleep well too and had stopped eating.  In this case, the risk was extremely high as the hamster was in a very poor body condition.

If I had operated on day 1 so as to reduce veterinary cost and let the hamster go home on the same day, the hamster might not have survived as she was in a poor condition. Never operate on a pet that is not eating for the past few days. Minimise the risk of death due to stress from surgery.

In this case, I rushed to the pet shop to buy a new hamster cage to ward the hamster for observation rather than do immediate surgery.

It was already 5.30 p.m when I reached the pet shop and parked my car without displaying the necessary parking coupons. I saw two wardens approaching. My assistant James said, "The parking wardens are going home, no problem." This was the last day of the year 2007 and most civil servants and other employees work half a day. So James was presuming that the two ladies were going home.

Yet they were wearing the official uniforms and carrying their hand-held ticking PDA as if they were ready for action.

I said, "Looks like they are ready to book vehicles for non-display of parking coupons. You go ahead to buy the hamster cage, water bottle and food I wait a while." The wardens eyed me suspiciously for evading the parking tax and inspected other vehicles. Buying a hamster cage should not take more than 5 minutes. Out of respect for the hardworking wardens, I drove my car out of the parking lot. They might still summon me for illegal parking but these two women explained to me that they had to do their job as there were numerous complaints of illegal parking or parking in reserved car park lots meant for the Housing Development Board residents.        

The pet shop seller shouted from his back shop. He waved a monstrous hamster cage with various spiraling colourful orange and blue plastic tunnels attached and weaving outside the cage from inside his shop at the back entrance gate.

A complicated model. No sick hamster has time to tunnel and twist around these channels. 

"George, George!!" I shouted from the car park some distance away. I cursed him for not knowing what I needed. James also did not know what was wanted. "Just a simple cage will do!"

George went back to his shop interior. He gave James a blue cage and I warded the hamster for 3 days. I gave the hamster a drop of the anti-inflammatory medicine per day for 2 days to bring the redness of the tumour down to normal pink colour. There was a possibility that she could just die in the next 2 days as she was not eating.  

On the 3rd day, her skin tumour near and to the right of her vulva was no longer fiery red but a dull pink lump. She was eating a bit more but her stools were scant. At least there were around 10 mini-stools. The owner had phoned to enquire about her health on day 2 and I explained to her that I needed to keep the hamster for another 2 days.  
On the 3rd day, she was operated as this young man of 21 years old, going into his 2nd year veterinary study at Murdoch University assisted me. I hope he would learn something about hamster health and surgery that would be recalled and be useful during his lectures.

I asked Daniel to restrain the hamster in a white towel as I took out my surgical instruments.   

"No anaesthesia?" the 21-year-old vet student who had completed his National Service looked at me in surprise. 

"The hamster is too weak and may die under anaesthesia," I explained to the young man who must be thinking that all animal surgeries need anaesthesia.  "Hold the hamster in your towel to stop her wriggling. It takes less than 1 second to snip off the tumour." I took a tissue forceps to elevate the tumour and to show him a small stalk attaching the tumour to the skin. Then I snip it off at the stalk with a small curved bladed scissors.   

After snipping, blood splashed covering the whole area of more than 2 sq cm. What to do? This tumour had a large blood vessels connected to the skin. Would the hamster die? The young student held the hamster in the towel while I pressed a piece of tissue paper to stop the bleeding.

Bleeding is quite common in tumour removal of hamsters. They looked profuse and a lot because the hamster is so small, unlike a dog. It was not possible to clamp the stalk of the tumour as the tumour itself was small. The stalk was about 2 mm in width and because the tumour was no longer inflamed, I could see it.

"The fastest way to wash away the blood was to flush the blood off under a tap. Just the area of surgery and not the whole hamster", I said to the student who had not spoken one word throughout the surgery. He must be wondering how I could wipe the messy bleeding as the hamster struggled to get free.

I don't know whether the young man learnt anything from this case as he was starting his second year. Did he learn something about the anatomy of the hamster's reproductive system.

"Is the tumour an enlarged clitoris?" I asked him.

"No," he said. He was correct. From close observation, it was a skin tumour very close to the vulval lips but definitely not the clitoris.

Is he the observant type I wondered? Why was the tumour located in relation to the vulva?

I asked him to illustrate the process of cutting the tumour as he saw it so that he could learnt something by participating in the whole procedure. He was a good illustrator.

The young man drew the tumour at the right side of the vulva as he recollected.

"No," I tried to be patient and not discouraged him for being not observant. He had just completed part of his Anatomy lectures in Year 1 of Murdoch University.

"The location of the tumour is not correct." I let him see the wound as I held the hamster. Great patience and time are needed to mentor the young ones. 

The young man with spiky reddish brown dyed hair and left ear ring drew the illustration again.  I gave some tips on medical illustration for the final drawing.

You can see his drawing and the skin tumour in one of the pictures. Not bad for a beginner but drawing was not his cup of tea. 

The mother came on Day 4 to bring the hamster home. "Thank you very much," she smiled. "The hamster had put on weight!"

"She seems to be very hungry after removal of the tumour," I said. "Keeps eating.

"She seldom stuff some much food in her cheek pouch at home. Look, she has over-fill her cheek pouch!" I had not noticed that but it was true. 

 How's your little girl? She did not come today. Is she studying in Primary Two?"

The slim be-spectacled mother in her late 30s smiled again, "My 'little' girl is in Primary Six. Yes, she is short. But there are some classmates shorter than her!" 

So much for my power of ageing  of little girls. I better stick to my core competence of animals.

"The hamster is still lifting her right hind leg while she walks," the observant mother saw what I did not.

I put the hamster on the examination table. She was really observant; I must learn from her.

"The hamster is still limping as she could have sprained herself trying to lick furiously at the tumour." The tumour was on the right lower side of her vulva and she must have had sprained her muscles on the right hind leg."

Most likely the hamster would recover and walk normally later. There was no more bleeding in the small 2 mm skin wound after I had snipped off the tumour.

All clients want a live pet back after treatment. Death of a pet ruins a reputation of the veterinarian whatever the explanations.

Therefore, it is best for a veterinarian not to rush into surgery when the patient is not in good body condition. The success rate, sometimes known as "clinical outcome of surgery" is very slim if one rushes in where angels fear to tread.

Hamsters are beloved family pets in Singapore. The family of this hamster is most happy to see her alive and without the tumour even though her right hind limb pointed horizontally when she was discharged to go home!


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All rights reserved. Revised: January 05, 2008