Osteochondroma is a benign tumor, originating from the components of bone (osteocytes) and components of cartilage (chondrocytes). These tumors often invade the long bones in the metaphysical, especially in the area around the knee. These tumors are mainly found in adolescents whose growth is active and in young adults. Symptoms of pain occurs when there is an emphasis on exchanges or the surrounding soft tissue. Hard lumps that can be found in the area around the lesion.
Locations are usually in the metaphysical osteochondroma of long bones especially around the knee joint (articulatio genu), particularly the distal femur, proximal tibia and proximal humerus. It can also be found on the scapula and ilium bones.
Bone is the third organ most frequently invaded by metastatic disease (disease of an organ that spreads to other body parts). Cancer most often spreads to the bone are breast, lung, prostate, thyroid and kidney.
When compared between carcinomas and sarcomas, the more frequent type of cancer that spread to bone are carcinomas. The first bone is usually affected are the ribs, pelvis and spine; the bones of the distal (tip of the body) are rarely affected.
The spread occurs when a single tumor or a set of tumor cells into the bloodstream and through the blood vessels in the canal Harves to the bone marrow, where they proliferate and form new blood vessels.
Batson venous plexus in the spine allows the cancer cells into the circulation spine without having to go through the lungs first. Blood flow in this plexus is so slow that cancer cells can survive and increase the incidence of prostate cancer metastases to the spine.
In plain genu looked away from the bony joints in the cortex and spongiosa is still normal. Protrusion of the bone is shaped like cauliflower (couliflower) with components osteocytes (bone hard) as a component of the stalk and chondrocytes (cartilage) as interest. Inhomogen protrusion of bone density (opaque on the flower stalk and lusen). Sometimes seem opaque calcifications in the form of spots due to a calcified kondral components. Tumors can be either single or multiple depending on the type.
OSTEOCHONDROMA is a benign bone neoplasm that most often obtained. By some experts is not considered a neoplasm, but as a hamartoma (new growth, where the cells can be grown). There at the age of young adults with complaints of a hard lump and no pain, grow very slowly. Found in the metaphysical long bone, especially in the distal femur, proximal tibia and proximal humerus (35%), pelvis and scapula. X-rays are two forms: stemmed / pedunculated and have a wide base (sessile). Preview image shows bone stemmed plain outside the growth area of ??the metaphysical. Form a uniform lesions, cartilage with calcification. Corteks and medulla are connected by the lesion. When the tumor gave a complaint for suppressing nearby structures such as tendons, nerves, then performed excision. The prognosis is good. Complications of malignant degeneration of approximately 1%. Immediately contact your doctor to find out the disease more.
