Osteosarcoma in German Shepherd Dog

Osteosarcoma in German Shepherd Dog

1. Definition

Osoma: It is a malignant tumor derived from osteocytes. It is the proliferation of scattering cell matrix and directly forms bone -like or immature bones. Obormatarcoma is common in dogs and cats. In dog's osteoma, osteosarcoma accounts for a large proportion of osteooma, and often occurs in medium and large dogs. There is no age distinction. The probability of dogs is the highest. Most of the osteosarcoma occurs on the long bones of the limbs, and most of them occur in the radius, humerus, tibial, femoral bone and other places. Cat's hind limbs are more likely to suffer from osteosarcoma than forelimbs.


Second, cause cause

Common causes of pathogenic causes are damage, inflammation, and some chronic diseases caused by nutritional metabolism. As we all know, often radiation can also lead to many diseases such as tumors. There are also some viruses and chemicals that cause tumors of the bones of animals.

Osteosarcoma in German Shepherd Dog

3, common symptoms

The most common symptoms should be clams, commonly known as lame. The sarcoma that occurs in the long bone end has a cold feeling during early strikes, but it will feel thermal sensation as it increases and the volume of its swelling is increased. If the sarcoma continues to grow, the dog's activities will be greatly limited, the muscles will shrink, and it will cause fractures. In the early days of the condition, the other body's response was not obvious. After the condition lasted for a period of time, it was seen that the entire body showed weight loss, malnutrition, fever, depression, and loss of appetite. If it does not occur on the limbs but occurs in the ribs and other places, the main symptom is local swelling. If the tumor that occurs in the vertebral body, it will cause nerve paralysis and cause paralysis.

Remove osteosarcoma

4. Diagnostic method

These clinical diagnostic methods can be determined first after consultation, but the difference between osteosarcoma is different from osteoma.

X -ray examination: The lesions generally start in the marrow cavity. The bone quality is mainly infiltrated. There are irregular hyperplasia. A few cases are osteogenesis. The osteosumite is osteoman, and the new bone tissue shows radioactive -like soft tissue into the surrounding soft tissue, and the boundaries are unclear.

Organizational examination: There are many tissues that produce a lot of bone needles, cartilage, and fiber. During the mirror examination, the cells of ostearararcoma are dehuminocytes, and the cells of osteoma are differentiated and mature osteoblasts and bone beams without fixed arranges.

The better -differentiated osteosarcoma, the texture is hard and pale, the tumor invades the soft tissue, and the bone marrow cavity will be destroyed by the tumor. Boomarcoma with poor differentiation, less bone quality in the tumor, generally does not form bone tissue, so the texture is soft and often has hemorrhage. Blumarous tumors are malignant tumors. Generally, dogs will die within a few months after diagnosis, and malignant tumors will be transferred to other organs, such as lungs, causing respiratory difficulties and failure. If this osteosarcoma occurs in the skull, the condition worsens more accelerated and the survival time is shorter. The diagnosis method mainly depends on X -ray and tissue biopsy to confirm the diagnosis, but it should be identified with other diseases.

Postoperative suture

The sick dog is hospitalized

5. Treatment method

Blumarofar is generally poor prognosis. Even if the lesion is cut, it will relapse or transfer to other tissue organs in a short time. The course of the disease that occurs in the limbs is shorter than others and can die in a short time. Early found that surgical amputation can be performed, but chemotherapy and chemotherapy and check the lungs before surgery, and the economic value of animals will decrease after amputation.

6. Breeding Suggestions

We need to prevent this disease for the cause. The common causes are trauma and inflammation and malnutrition. Therefore, we must target these, we must avoid pet injury during the breeding process. If injuries have been injured, it should be treated in time to prevent the disease from worsening; food matching must be comprehensive, trace elements and mineral vitamins should be coordinated; For example, some oxides, silicate, etc.