Ewings Sarcoma (Subscribe)  

Boy aged 7 years with pain and swelling in his right leg. There is a patchy lytic lesion with some expansion of the lower section of the diaphysis of the left tibia. The endosteal margins of the lesion are ill-defined, having a wide zone of transition between normal and abnormal bone....

Primitive Neuroectodermal Tumor (PNET) is a soft tissue sarcoma classically described under small round blue cell tumors (SRBCT). There is considerable clinical and histologic overlap between this tumor and Ewing's sarcoma (ES). For many years, pathologists struggled to make a diagnostic distinction. Now with sophisticated molecular biological analysis, it turns...

This tumour occurs at a younger age than osteosarcoma and its range of incidence is primarily between 5 - 30 yrs. The patient usually presents with pyrexia pain and may have an elevated ESR. The tumour involves a long bone, particularly the diaphysis. 40% of cases of Ewings sarcoma are...

Small round blue cell sarcoma of bone mimicking atypical Ewing's sarcoma with neuroectodermal features. An analysis of five cases with immunohistochemical and electron microscopic support
Antonio Llombart-Bosch, MD 1 *, Marie José Lacombe, MD 2, Genevieve Contesso, MD 2, Amando Peydro-Olaya, MD 1 1Department of Pathology, University of Valencia Medical...

This is a descriptive category describing a large number of malignant tumors that tend to occur in childhood. They are united by having a similar histologic appearance, that is, small round blue cells. Subtle clues may be present to distinguish between the tumors. The pathologist is assisted by immunohistochemistry, electron...

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