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 ...

kaposiform hemangioendothelioma is an aggressive endothelial-derived spindle cell neoplasm that occurs nearly exclusively during childhood and teenage years. the lesion grows rapidly and is often associated with kasabach-merritt syndrome. in this study a 24 days old male neonate who presented with an ill-defined deeply situated violaceous mass on his left arm is described. he had also anemia an...

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...