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Primary Osteosarcoma (primary + osteosarcoma)
Selected AbstractsPrimary osteosarcoma of the skullJOURNAL OF MEDICAL IMAGING AND RADIATION ONCOLOGY, Issue 1 2006F Haque Summary Primary osteogenic sarcoma of the skull is an exceedingly rare condition. An adult male patient is described, who had a painless swelling in the right forehead that had rapidly enlarged in the previous 6 months. Radiological investigations showed a large destructive mass lesion involving the right side of the frontal bone with extension into the frontal sinus, causing marked extradural compression of brain parenchyma. Histopathological examination confirmed the lesion to be primary osteogenic sarcoma. [source] Primary osteosarcoma of the uterine corpus: Case report and review of the literaturePATHOLOGY INTERNATIONAL, Issue 2 2002Mu Su A rare case of rapidly growing osteosarcoma that developed in the uterine corpus of a 62-year-old woman is presented. The tumor occupied almost the entire pelvic cavity and extended into the abdominal cavity, with marked involvement of the intestines. Histopathologically, the tumor was composed of an osteoblastic component, accompanied by conspicuous bone formation, and a fibroblastic component. The tumor cells were positive for vimentin and osteocalcin, as well as desmin, ,-smooth muscle actin and muscle-specific actin, but negative for h-caldesmon. The results indicated myofibroblastic differentiation in a part of the tumor. A review of 14 reported cases and our case of uterine osteosarcoma revealed that this tumor has a biologically aggressive nature, although its histopathological and immunohistochemical features are similar to those of osteosarcomas in soft tissue and bone. As the prognosis of patients with this tumor is poor, it is of importance to differentiate this tumor from other types of tumors arising from the uterine corpus. [source] Osteosarcoma of the testisINTERNATIONAL JOURNAL OF UROLOGY, Issue 3 2006HICHAM TAZI Abstract, This report describes a case of primary osteosarcoma of the testis in a 60-year-old man. Treatment consisted of an inguinal orchiectomy with no adjuvant therapy. The patient is alive and doing well without recurrent disease at 18 months after diagnosis. Only three reports have been published on primary osteosarcoma of the testis. The origin of this tumor from undifferentiated mesenchymal cells or from a malignant transformation of pre-existing teratomatous elements is still unclear. Management guidelines are difficult to establish due to the rarity of such tumors, but inguinal orchiectomy with careful follow up appears to be sufficient treatment. [source] Huge primary osteosarcoma of the liver presenting an aggressive recurrent pattern following surgical resectionJOURNAL OF DIGESTIVE DISEASES, Issue 3 2009Seong Heum PARK [source] | ||||||||||