Clinical differential diagnosis of some common cat tumor diseases

Jun 08,2024
8Min

In recent years, with the advancement of social science and technology, the life span of cats has been continuously extended, so the probability of cats developing tumor diseases is higher than that of domestic animals. Tumors are divided into negative and positive. Malignant tumors have a great impact on cats’ tissues and life. , needs attention.

Worldwide, mastocytoma and squamous cell carcinoma are the most common in cats. In clinical tumor surgeries, breast cancer accounts for the largest proportion. Tumors not only have many types and a wide range of incidence sites, but also have different biological characteristics. The clinical symptoms are also diverse. Tumor symptoms can occur in almost all tissues and organs throughout the body. Clinical diagnosis of tumors can generally be determined by biopsy, speculum, radiographic examination, or histochemical examination. Biopsy is a rapid and accurate clinical diagnosis method. Judgment is often made by cutting, puncturing, scraping tumor tissue or using exfoliated tissue fragments for pathological and histological examination under a microscope. Instrumental diagnosis includes X-ray fluoroscopy and radiography, which are also effective methods to determine the location of the tumor. B-ultrasound can be used to assist in the determination of abdominal tumors. ​​​​​​

In terms of clinical differential diagnosis, we can also make judgments through consultation, inspection, and palpation. However, when some diseases appear, we often ignore tumor problems and delay the best treatment opportunity. The following is Let’s list some common illnesses that are easily overlooked.

1. Some cats have poor eyesight, so the hospital treats them as neuritis. After a long period of treatment, the cat does not get better. As a result, an X-ray examination reveals that the condition is caused by a brain tumor compressing the optic nerve.

2. Attention should also be paid to the lameness of cats. If there is no external injury or skin disease, it may be caused by tumors. Some cats initially appear to be lame, but after diagnosis, it is found to be caused by bone tumors. There are extreme cases. It was even diagnosed that the kidney or prostate tumor had spread to the spine, compressing the nerves and causing lameness. Some cats show symptoms of spinning in circles, sudden limb ataxia, and staggering when walking. After diagnosis, it was found to be caused by the compression of brain tumors.

3. Some diarrhea is caused by intestinal tumors. The cat showed diarrhea and the hospital had been treating it as enteritis, but it was diagnosed that it was an intestinal tumor.

4. Some animals have difficulty defecation and are found to be caused by tumor compression in the pelvic cavity; if it is difficulty defecation and blood in the stool, it may be a tumor in the rectum.

5. Difficulty urinating in cats is usually caused by stones or prostate disease. Some stones are not found in X-rays and B-ultrasound examinations, but are diagnosed as prostate tumors.

6. The cat showed hematuria and was treated as cystitis. Finally, it was diagnosed as a bladder tumor.

7. The cat showed low back pain and was treated for intervertebral disc herniation. As a result, it was diagnosed as a spinal tumor or a tumor in the spinal canal or a tumor in the spinal cord itself.

8. The cat had difficulty breathing and was found to have pleural effusion during the X-ray. After diagnosis, it was found to be lactation.Chylothorax, further diagnosis revealed that it was caused by a heart tumor. Often early-stage lung tumors do not cause breathing difficulties.

9. In terms of skin diseases, some cats have erythema and do not recover after being treated for a period of time. After diagnosis, they are found to be skin tumors, such as mast cell tumors, squamous cell carcinoma, etc. Some cats show hair loss all over the body and increased abdominal girth, and are diagnosed as adrenal tumors or tumors in the hypothalamus and pituitary gland. Some cats have jaundice on their skin, which is thought to be jaundice hepatitis. Correction here: there is no such thing as jaundice hepatitis in the medical terminology of cats. There are many diseases that can cause jaundice. Some jaundice symptoms are found to be liver tumors, bile duct tumors or pancreatic tumors after examination.

10. In terms of oral and respiratory diseases, cats’ bad breath and oral ulcers were found to be oral tumors after examination, and some even had mandibular tumors that had ruptured. The cat's nasal cavity discharged secretions. At first, he thought it was rhinitis or sinusitis. After examination, it was found to be a nasal cavity tumor. Some cats often vomit and have been treated for gastritis. After examination, esophageal cancer, gastric cancer, pancreatic cancer, liver cancer, intestinal tumors, etc. are found. This reminds us that the diagnosis of vomiting must be meticulous, and the problem may be minor or minor.

11. Some cats suddenly develop anemia without any trauma, and their abdominal circumference suddenly increases. After examination, massive internal bleeding is found. The most common one is ruptured hemangioma, such as ruptured spleen tumor, ruptured liver tumor, and aortic dissection. Tumor rupture, etc.

12. Some cats show sudden epilepsy, non-stop convulsions, and MRI scans reveal hydrocephalus, encephalitis, brain tumors, etc.

13. Some cats have purulent or even bloody secretions in their ear canals. Cleaning and treating otitis media and otitis externa has been ineffective for a long time. After diagnosis, it was found to be caused by tumors in the ear canal.

14. The cat suddenly developed a strong appetite and lost weight. After examination, it was found that the cat had an enlarged thyroid gland or a cyst, and was finally diagnosed with thyroid cancer. It is more common in older cats. There are almost no cases of simple hyperthyroidism in dogs.

15. The cat’s abdominal circumference suddenly increased and she was not pregnant. After examination, a large amount of ascites was found, and further examination revealed multiple tumors in the abdominal cavity that had spread.

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