primary bone tumors are the sixth most common neoplasm occurring in children and constitute approximately 6% of all childhood malignancies with a peak incidence in 15- to 19-year- old individuals. these lesions are the third most common tumors in adolescents and young adults (exceeded only by leukemia and lymphoma) common complaints are intermittent to constant mild to severe pain, constitution...

background: bone sarcomas are the most common malignancies of bone tissues in children, and are classified intotwo groups as osteosarcoma and ewing’s sarcoma. treatment and prognosis depend on the subtype and grade ofthe tumor. the goal of this study was to evaluate the features bone sarcoma in patients referred to mahak childrenhospital since 2007 to 2009.materials and methods: this was a retr...

Abstract Background Ewing sarcoma represents a spectrum of aggressive malignancies with the poor outcome. Primary renal is rare and accounts for less than 1% masses. Case presentation We present case 45-year-old male presented in OPD complaint right flank pain hematuria. He underwent contrast-enhanced CT abdomen which depicted mass liver lesions. Robotic Right Radical Nephrectomy pathological d...

Primary spindle cell sarcoma in the heart is a very uncommon disease. Although primary atrial or pulmonary vein spindle cell sarcomas have been sporadically reported, pericardial spindle cell sarcoma is rarely seen in currently available data. The commentary here is on a primary pericardial spindle cell sarcoma that was preliminarily misjudged to be left main coronary artery disease.

BACKGROUND Granulocytic sarcoma is an extramedullary tumor of myeloblasts. The purpose of this report was to present a case of a primary laryngeal granulocytic sarcoma and review of the literature. METHODS A literature review was performed using Medline and PubMed databases to search for cases of all primary and secondary myelogenous tumors of the larynx. RESULTS A 36-year-old man presented...

uterine sarcoma is a rare tumor of mesodermal origin, accounting for 2-6% of uterine malignancies. leiomyosarcoma (lms) has been reported in only 1% of all uterine malignancies and is regarded as the most common primary uterine sarcoma. herein, we present a case of lms with unusual macroscopic features. the patient was a 61-year-old woman with lms, which consisted of a large cystic mass (88×136...