Small round blue cell sarcoma of bone mimicking atypical Ewings sarcoma

Description: 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 School, Hospital Clinico Universitario, Valencia, Spain 2Laboratory of Histopathology C, Institute Gustave Roussy, Villejuif, Francebr> Cancer: Volume 60, Issue 7 , Pages 1570 - 1582 Published Online: 28 Jun 2006
Abstract - Of a group of 39 cases of ES, reviewed with electron microscopic study, the authors have isolated five atypical Ewing's Sarcoma (ES), which historically also possessed neuroectodermic traces. These tumors were composed of small round blue cells with rosette-like figures and cytoplasmic glycogen.