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Prognosis depends on how early the cancer is discovered and treated. For the least aggressive grade, about 90% of patients survive more than five years after diagnosis. People usually have a good survival rate at the low-grade volume of cancer. [3] For the most aggressive grade, only 10% of patients will survive one year. Tumors may recur in ...
Intra-articular tumors typically occur in the knee (approximately 75% of cases) and hip (approximately 15% of cases). [3]: 102 Extra-articular tumors are usually found in the knee, thigh, and foot. [3]: 101 Symptoms include swelling, pain, sensitivity, and/or limited range of motion.
Metastasis of tumors involving the limb bones is very common, usually to the lungs. The tumor causes a great deal of pain, and can even lead to fracture of the affected bone. As with human osteosarcoma, bone biopsy is the definitive method to reach a final diagnosis.
Hemangiopericytoma is an aggressive mesenchymally derived tumor with oval nuclei with scant cytoplasm. There is dense intercellular reticulin staining. Tumor cells can be fibroblastic, myxoid, or pericytic. These tumors, in contrast to meningiomas, do not stain with epithelial membrane antigen.
Osteoblastoma is an uncommon osteoid tissue-forming [1] primary neoplasm of the bone.. It has clinical and histologic manifestations similar to those of osteoid osteoma; therefore, some consider the two tumors to be variants of the same disease, [2] with osteoblastoma representing a giant osteoid osteoma.
Chondroblastoma is a rare, benign, locally aggressive bone tumor that typically affects the epiphyses or apophyses of long bones. [ 1 ] [ 2 ] It is thought to arise from an outgrowth of immature cartilage cells ( chondroblasts ) from secondary ossification centers , originating from the epiphyseal plate or some remnant of it.
Formation of pseudoaneurysm and venous thrombosis lead to claudication, pain, acute ischemia, and symptoms of phlebitis. If the tumor is found under a tendon, it can cause pain during movement causing restriction of joint motion. Pain can also occur due to bursal inflammation, swelling or fracture at the base of the tumor stalk.
Enchondroma is a type of benign bone tumor belonging to the group of cartilage tumors. [1] [2] There may be no symptoms, [3] or it may present typically in the short tubular bones of the hands with a swelling, pain or pathological fracture. [4] Diagnosis is by X-ray, CT scan and sometimes MRI. [4] Most occur as a less than three centimetre size ...