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Lumps are a very common occurrence, especially in aging pets. Approximately 30 percent of all tumors found in dogs and cats occur on the skin. There are a couple of important questions owners should ask themselves when they find lumps on their pets.

• Has the lump appeared suddenly, or has it been there awhile?
• Has the lump stayed the same in consistency and appearance or has it changed recently?
• Does the lump seem to separate from underlying tissue or is it attached?
• Is there only one lump or are there multiple similar lumps?
• And finally, are there changes in your pet's behavior such as eating less, losing weight, vomiting, diarrhea, or lethargy?

Answering these questions may help your veterinarian evaluate the seriousness of the lump's presence.

Often, lumps are benign accumulations of fat known as lipomas. Keep in mind, however, that while all lipomas are lumps, not all lumps are lipomas. Any detected lump should be evaluated for the possibility of a more aggressive malignancy. In general, many benign lumps may grow slowly or not at all and remain unchanged for many months or even years. Most malignant lumps, however, grow rapidly and may infiltrate into the underlying tissue. The best way to figure out if a lump is benign or malignant is to have your pet examined by a veterinarian.

Many skin tumors, benign or malignant, can be cured with surgery. Unfortunately, skin tumors could be just the tip of the iceberg. Diagnostic tests may be needed to determine if the lump on your pet might be a manifestation of a more widespread disease.

Canine Mast Cell Tumor

The most common malignant skin cancer in dogs is the mast cell tumor. Mast cells are normal cells in the body that serve as a defense mechanism. When you are bitten by a mosquito, for instance, the mast cells initiate the inflammatory response that causes the production of a red and itchy hive. Mast cells also contribute to asthma and food allergies.

If the normal mast cell undergoes a malignant change, a mast cell tumor may be produced. Canine mast cell tumors may be benign or possess varying degrees of malignancy. Malignancies range from local reoccurrence following surgical removal to aggressive systemic disease, which may ultimately be fatal. Biopsy can help determine the aggressiveness of a mast call tumor.

Although mast cell tumors primarily affect the skin, they have the potential to spread to other areas of the body. Therefore, it is important not only to address the skin tumor, but also to fully evaluate the pet for signs of metastasis. This often includes blood work, thoracic radiographs and abdominal ultrasound. If there is no evidence of tumor metastasis, surgical removal of the mast cell tumor may cure the problem. If complete surgical removal is not possible, radiation therapy or chemotherapy can be considered.

Feline cutaneous (skin) mast cell tumors are generally benign and surgical removal is often curative. Metastasis from a skin mast call tumor is not as common in cats as it is in dogs. Some cats, however, may produce a distinctly different type of mast cell tumor that primarily affects internal organs, such as the spleen, liver and bone marrow. This type of mast cell tumor is called visceral mastocytosis and is much more aggressive than mast cell tumors of the skin.

When you notice a lump or bump on your pet, it is best to have your pet examined by a veterinarian as soon as possible. Many pets have lumps that remain benign all of their lives, but if a lump is malignant, your pet has a better prognosis if treated early. Skin cancers are quite common and often can be cured. The best way to detect lumps at any stage is to give your pet full body rubs on a regular basis. Not only are you contributing to your pet's health and your own peace of mind, your pet is going to love the attention!

Obesity is the most common nutritional problem of cats. Since most cats are relatively inactive, it is not surprising that up to 40 percent of all cats seen by veterinarians are overweight. Obesity puts a considerable number of cats at risk for associated diseases such as lameness, feline urologic syndrome, diabetes mellitus, skin problems and cardiac disease. Due to the amount of fat that is present in the body of an overweight cat, x-rays are sometimes difficult to assess and surgical procedures can be difficult to dangerous.

It is tempting to tiptoe around the issue of feline weight reduction. One reason is lack of client acceptance of the problem. The realization of owning an obese cat can sometimes prove awkward if the owner is also markedly overweight. More important to remember, however, is that although the "lose weight fast" mantra is appealing to humans, it can be deadly for cats. Rapid weight loss in cats is associated with hepatic lipidosis (fatty liver disease), most commonly seen in obese, spayed female cats undergoing a short-term "crash" diet.

Traditional high-fiber (up to 25 percent) weight-loss diets can also cause problems, such as excessive stool output, poor skin and coat condition and decreased nutrient digestibility and absorption. Weight loss can be achieved safely, however, with a low-fiber, low-calorie diet. Research has found that a cat can lose an average of 1.5 percent of their body weight per week over a 16-week period with no adverse effects. Ultimately, it is important to work with your veterinarian in order to find a diet that your cat likes, as well as having the ability to help your cat lose weight safely.

Another weight-loss tool on the horizon is L-carnitine. Obtained from diet or synthesized by the body, L-carnitine facilitates "fat-burning" and is already used in humans. Following studies, it has been concluded that a lipid solution of supplemental L-carnitine accelerates weight loss and may increase the rate of fatty acid oxidation in cats. It has been cautioned, however, that this effect requires further investigation. As with human diets, there is no magic feline diet pill!

Before embarking on a feline weight loss program, it is important to have your veterinarian assess your cat's body condition, current health condition and medical history. Weight reduction in cats is a tough problem. Research confirms that cats can lose weight safely with the proper diet, but with so many foods to choose from, it can be difficult to go it alone. Use both the advice from your veterinarian and the choice of your cat (if he won't eat it, then it might not be such a good choice!) to determine the right food. Just remember: as cats lose weight on a well balanced portion, they become more active and playful and have a healthier appearance. This is a win-win situation!

About two weeks before the puppies are due, a nesting box should be introduced to the expectant mother. The box should be made from a washable material and located in a warm and secluded area. The bottom of the box should be lined with an absorbent material that can be changed frequently. Newspapers, towels, or clean rags make excellent bed liners.

Late Stage of Pregnancy

The first stage of labor is marked by uterine contractions. The expectant mother appears restless and may pace about the house. She refuses to eat and sometimes vomits. The bitch may isolate herself and exhibit nesting behavior. (Hopefully, nesting will occur in the whelping box.) This behavior is normal and there is little that the owner can do. This stage generally lasts 8-24 hours.

The second stage of labor begins when the cervix is completely dilated. The delivery of the puppy occurs during this phase. Phase three of labor refers to the expulsion of the placenta and the afterbirth.

After several contractions, the first puppy is born. If the first puppy is not born within 45 minutes after the beginning of contractions, a veterinarian should be called. The time interval between successive puppies is extremely variable and can range anywhere from 30 minutes to several hours. It is not unusual for a mother to rest between groups of puppies.

Generally when each puppy is born, it is enclosed in a membrane or sac. The mother usually licks the puppy's face and rips open the sac. If this sac is not immediately broken by the mother, human intervention is required. The sac must be opened, and the puppy's face must be rubbed. Rubbing the puppy's face with a clean cloth is an excellent method to stimulate breathing.

A placentas is usually passed within 15 minutes after the birth of a puppy. Occasionally, two placentas may follow two puppies.

There are two normal positions for delivery. The puppies may come out "head first" or "rear first". A "head first" delivery is generally easier than a "rear first" delivery.

Human intervention is required when a puppy is lodged in the birth canal. When this occurs (and the mother is not able to expel the puppy herself), the mother must be restrained and gentle traction applied to the puppy. The puppy is grasped with a clean dry towel and pulled in a downward position, toward the mother's feet. When a puppy is lodged in the birth canal for a considerable amount of time, it is usually born dead.

Following each birth, the remaining portion of the sac should be removed from the puppy's face. Any mucus surrounding the nostrils should be cleared away. Puppies should be placed on a dry clean towel and rubbed. Vigorously rubbing of the puppy stimulates breathing. Using a fine-diameter thread, each umbilical cord should be tied about one inch from the puppy's belly. The cord is cut on the far side of the knot, and the remaining stump (with the cord) is dipped into a white iodine or Betadine solution. If the puppies are similar looking, it is best to number each one with a permanent marker.

Recently Born Puppy

When the mother is relaxed and she settles down with her puppies, it is safe to assume that the birthing process is over. Within 12-18 hours after all puppies are delivered, the mother should be examined by a veterinarian.

Normal vaginal discharge is brown, green or red in color. A significant amount of discharge is present following birth. This discharge tapers off and gradually subsides in 4-8 weeks. If the discharge is abundant, foul-smelling, pussy, or extremely bloody, a veterinarian should be consulted.

With warmer weather approaching, plenty of pet owners are thinking of getting into shape before hitting the beach. But what about pets? Obesity is a growing problem among both cats and dogs. And much like humans, too many extra pounds can have far-reaching consequences for our animal companions. In this report from the Veterinary News Network, Dr. Jim Humphries discusses the health problems that can occur if your pet is overweight and shares tips on how you can get your pet's weight under control.

1. My cat won't use the litter box because he/she is rebellious and wants to make me mad.
A. True
B. False

2. My cat scratches the furniture to:
A. Mark territory
B. All of these
C. Stretch muscles
D. Shed nail sheaths

3. What's the purpose in why my cat "kneads"?
A. A sign of being hungry
B. A sign of aggressiveness
C. A sign of affection
D. A sign of being unhappy

4. My cat leaves objects such as his/her toys in his/her food or water bowls just to drive me crazy.
A. True
B. False

5.Why does my cat suddenly bite me in an aggressive manner when I'm petting him/her?
A. My cat is mean
B. None of these
C. My cat doesn't like affection
D. My cat doesn't want to be petted anymore

6. My cat purrs only when he/she is happy and relaxed.
A. True
B. False

7. Is it normal for my cat to exhibit body movements during sleep?
A. Yes
B. No

8.Why does my cat insist on playing and ransacking the house after I have gone to bed?
A. My cat wants me to get up
B. My cat is a nocturnal creature
C. My cat likes to annoy me
D. None of these

9. Why does my cat scratch the floor around his/her food and water bowls after eating as if to cover it up?
A. To hide it
B. Doesn't like its location
C. It smells bad
D. None of these

10. Why does my indoor cat attack me or my other indoor cat(s) when he/she sees an unknown cat outdoors?
A. My cat is most likely showing he/she is in control
B. My cat is most likely showing displaced fear
C. My cat thinks of me or my other cat(s) as prey
D. My cat is most likely showing displaced aggression

Answers

1. B 2. B 3. C 4. B 5. D
6. B 7. A 8. B 9. A 10. D