No abstract available.
Chondroblastoma*

We treated three cases of bone tumors-giant cell tumor, chondroblastoma and malignant fibrous histiocytoma-with a custom-made prosthetic replacement. The patients were followed from 10 months to 18 months, postoperatively. The results of these study are as follows: 1. Satisfactory anatomic restoration 2. Early ambulation 3. Good function 4. Biomechanically sound reconstruction
Chondroblastoma ; Early Ambulation ; Humans

Chondroblastoma is an uncommon primary benign bone tumor that usually arises in the epiphyses of the long bones. Chondroblastoma of temporal bone is extremely rare. Its biological nature is often benign but is sometimes aggressive because of the local invasion. Recently, the authors have experienced two cases of chondroblastoma of temporal bone which were completely excised. We report these cases of chondroblastoma of the temporal bone with a review of literature.
Chondroblastoma* ; Epiphyses ; Temporal Bone*

Chondroblastoma is an uncommon, benign, cartilaginous neoplasm originating in an epiphysis or apophysis of a long tubular bone. The rib is an unusual site for chondroblastoma. The authors describe a case of chondroblastoma of the rib and present a brief review of the literature.
Bone Neoplasms ; Chondroblastoma* ; Epiphyses ; Ribs*

Bone Neoplasms ; Chondroblastoma ; Humans ; Ribs ; pathology

Chondromyxoid fibroma (CMF) is the least common benign cartilaginous tumor, comprising less than 0.5 to 1% of all skeletal neoplasms. This subject was a 16-year-old female with a three-year history of pain involving the distal femoral metaphysis. This case showed an unusual feature: it was intracortical in location. Radiologic differential diagnosis included metaphyseal fibrous defect, periosteal chondroma, simple or aneurysmal bone cyst, and cortical abscess. On operation, the lesion filled the intracortical defect with whitish myxoid soft tissue, bulging into the adjacent soft tissue. Microscopically, it showed typical features of chondromyxoid fibroma composed of mainly myxoid nodules and peripheral fibrous elements with focal chondroid differentiation.
Adolescent ; Case Report ; Chondroblastoma/pathology/*radiography ; Female ; Femoral Neoplasms ; Human

Chondroblastoma of the patella, rare occurred in patellar,is a kind of an uncommon benign bone tumor. Compared with giant cell tumor, the morbidity of chondroblastoma is lower. Meanwhile, its clinical manifestations are various, and images are very complicated. Therefore, the understanding of this kind of tumors may be limited even to the orthopedist. The differences of patellar chondroblastoma between other tumor in X-ray, CT and MRI is a spot in recent years. Sometimes patellar chondroblastoma coexists with aneurysmal bone cyst, which is a challenge to obtain an accurate pathological and radiological diagnosis. For the treatment, curettage and bone grafting is one the most popular method, but whether to perform a biopsy before surgery still remain controversy. Some new technique still has an unknown prospect for the treatment such as radiofrequency ablation.
Bone Neoplasms ; diagnosis ; surgery ; Chondroblastoma ; diagnosis ; surgery ; Humans ; Patella ; surgery

We recently experienced an atypical chondroid lesion metastatic to the lung. Examined under the microscope, the excised nodules displayed abundant amounts of chondroid tissue and necrosis with dystrophic calcification. The calcification had a characteristic "chicken wire" pattern. The chondroblasts contained one or two round to oval, focally indented nuclei with inconspicuous nucleoli. Although some enlarged nuclei with mild to moderate pleomorphism were present, significant nuclear atypia was lacking. Mitotic figures were scarce (1/10 high power field). Scattered multinucleated osteoclast-type giant cells were observed among the chondroblasts. Thus, the possibility of chondroblastoma was considered first. Metastasis of histologically benign chondroblastoma is a rare event, but well documented. The pulmonary metastatic nodules were described as ceasing to grow in some cases; and a significant number of patients were free of tumors following removal of the metastatic nodules. These findings suggest that the metastasis may represent a simple transport phenomenon. However, there are, as yet, no histologic parameters that help determine whether these metastases are to cease their growth or will progress to kill the host.
Chondroblastoma ; Chondrocytes ; Giant Cells ; Humans ; Lung ; Necrosis ; Neoplasm Metastasis

Cartilage-forming tumors are benign cartilaginous tumors that rarely affect the spinal canal. They account for 2% of all spinal tumors and 2.6% of all benign bone tumors, and involvement of the vertebral column is found in 3-5% of the cases. Pathologically, they may be classified as chondroma, osteochondroma, chondroblastoma and chondromyxoid fibroma. This oncotype may remain asymptomatic or may present as a hard paravertebral swelling, or -more rarely- be accompanied by a slowly developing neurologic syndrome. We report the case of a 38 -year- old man in whom pain in the left buttock and left leg developed. Surgery involved a left partial hemilaminectomy and the mass was totally excised.
Buttocks ; Chondroblastoma ; Chondroma ; Fibroma ; Leg ; Osteochondroma* ; Spinal Canal ; Spine*

Chondroblastoma is an uncommon benign chondroid neoplasm that occurs predominantly at the epiphysis of the long bones in the skeletally immature. Rarely chondroblastoma may occur in the skull. We report a case of a 36-year-old man with chondroblastoma arising from the right temporal bone. Radical excision of the tumor using the infratemporal fossa approach was performed and the involved dura was resected. There was no evidence of tumor recurrence 4 years after surgery. On the basis of this case and a review of the literatures, we recommend complete surgical excision including adjacent dura mater as the primary treatment for chondroblastoma of the temporal bone invading the dura mater.
Adult ; Chondroblastoma* ; Dura Mater* ; Epiphyses ; Humans ; Recurrence ; Skull ; Temporal Bone*