sarcomas account for less than 1% of all primary breast malignancies, pleomorphic sarcoma of the breast being even rarer. we present two cases of pleomorphic sarcoma of the breast in a 35-year-old and a 43-year-old female. an extensive review of the available literature with evaluation of the etiology, changing terminologies and histopathologic features of pleomorphic sarcoma of the breast are ...

Introduction: Sarcomas are rare malignancies with aggressive biological behavior. They are categorized into soft and hard tissue types. The main objective of this study was to analyze the prevalence of head and neck sarcomas (HNS) among the Iranian population. Materials and Methods: The pathology files derived from Iran National Tumor Bank of Cancer Institute in Imam Khomeini Hospital, affiliat...

Background: Ewing's sarcoma/Primitive neuroectodermal tumor (PNET) is a group of tumors with small round cells that originate from nerve stem cells. They are generally more common in children and often occur in the soft or bony tissues of the limbs, trunk, head, and neck. Ewing's sarcoma is a rare disease in the kidney and its tumor thrombosis into Inferior Vena Cava (IVC) is assumed as a very ...

  Chloroma or granulocytic sarcoma (GS) is a malignant neoplasm of myeloid lineage that occur in a variety of anatomic sites other than the bone marrow including soft tissue, bone, lymph node, nasal fossa, skin and sometime in the orbit. In the subconjunctiva it is rarely reported. A 4-year-old girl with a history of treated acute myelogenous leukemia was referred to Farabi Eye Hospital, Tehra...

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...

Malignant gastrointestinal neuroectodermal tumor (GNET) is an infrequent soft-tissue sarcoma, formerly referred to as clear-cell sarcoma-like (CCSLGT) and frequently reported in the literature sarcoma of tract (CCS-GI); it characterized by absence melanocytic differentiation presence nontumoral osteoclast-like giant cells (OLGCs). The current study reports a case 79 year old woman admitted emer...

Introduction: Malignant mesenchymal tumors of the larynx are rare. One type of malignant mesenchymal tumor is synovial sarcoma with unknown histogenesis, which occurs predominantly in the lower extremities of young adults. The head and neck region is a relatively rare location. There are few cases of malignant mesenchymal tumors with laryngeal localization in literature.  Case Report: In this r...

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...

Although rare, synovial sarcoma is the most common malignant non-rhabdomyosarcomatous soft tissue sarcoma in children and adolescents. Synovial sarcoma typically involves the soft tissues of the extremities, especially near large joints, but it can occur anywhere in the body in locations far from joint spaces. Although this tumor typically affects adults in their fourth decade of life, nearly h...