Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0029463 (osteosarcoma)
 16,637 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The case of a 48-year-old male with a malignant mesenchymoma of the maxilla is reported. The patient had complained of bloody rhinorrhea and cheek pain, and a total maxillectomy was performed. The tumor consisted of a rhabdomyosarcoma, an osteosarcoma and a chondrosarcoma, which were relatively differentiated. Later, recurrence of a tumor and a lung metastasis occurred, however the tumor revealed undifferentiated mesenchymal cells. This led us to suspect the origin of the malignant mesenchymoma had been a primitive mesenchymal cell. To our a knowledge, the present case is the first reported case of a malignant mesenchymoma with a maxillary origin in the world.
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PMID:[A case of malignant mesenchymoma of the maxilla]. 232 68

Chondrosarcoma is second in frequency only to osteogenic sarcoma as a malignant tumor of bone, and constitutes 17 to 22% of all bone tumors. However, chondrosarcoma is the most common malignant tumor of the sternum or rib. The natural history of chest wall chondrosarcoma is one of slow growth and local recurrence. Wide excision is the main treatment, but usually plastic surgery is needed for chest wall reconstruction. A 29-year-old male patient visited to local clinic due to URI symptoms (eg: cough, rhinorrhea). Routine chest X-ray examination showed a huge tumor within L't chest cavity and chondrosarcoma was proved via tissue biopsy. P't underwent surgery for total removal of the tumor and corresponding rib (3rd rib) and the chest wall defect was repaired with bovine pericardium. So far, after follow-up and treatment for 4 months, there is no evidence of recurrence.
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PMID:[Chondrosarcoma of the rib--a case report]. 280 67