Kaposi sarcoma is a malignant disease that originates fromthe lymphatic system. Different epidemiological, clinical andhistopathological variants of this neoplasm have been identified.Classic Kaposi sarcoma is one of the four main clinico-epidemiologicvariants. Cutaneous lesions vary from pink patches to darkviolet plaques, nodules or polyps, depending on clinical variantand stage. Kaposi sarco...

Background: The effect of race and ethnicity on some kind of malignant bone tumors including Ewing sarcomahas been proven in different studies. In order to evaluate the latter, national cancer registries may help to increaseunderstanding about potential cancer causes, prevention and control strategies, and apply these findings to controlhealth problems among populations with s...

background kaposi sarcoma (ks) is an angioproliferative tumor that mainly involves mucocutaneous tissues, but extracutaneous spread to lymph nodes, gi tract, lungs, liver, pancreas, heart, and testes can occur in aids-associated ks. patients with pulmonary ks may be symptomatic or present with an asymptomatic abnormality on chest radiography. patient and method a 28-year-old man presented with ...

background: primary malignant bone tumors are heterogeneous groups of neoplasms, which affect mainly children and adolescents. the most common types are osteosarcoma, ewing sarcoma and chondrosarcoma. elevation of scd30 and scd40l has been observed in lymphoma, leukemia and autoimmune disorders. objective: to evaluate serum concentrations of scd30 and scd40l in patients with primary malignant b...

Mediastinal Myeloid Sarcoma is a rare entity. Here we present case of 28-year-old gentleman, who first presented with mediastinal mass and was clinically considered lymphoblastic lymphoma. He diagnosed initially as having T lymphoma on trucut biopsy. After one month patient Acute myeloid leukemia peripheral smear bone marrow examination confirmed the help flow cytometry. The biopsy slides from ...

  Extra-skeletal Ewing’s sarcoma is a rare soft tissue malignant neoplasm, morphologically indistinguishable from skeletal Ewing’s sarcoma. The usual sites of involvement are the soft tissues of para-vertebral region, chest wall, and lower extremity. Extra-skeletal Ewing’s sarcoma is rare in the head and neck region and very few cases are reported in the parotid gland. The cytological features...

Myeloid sarcoma is a rare extramedullary tumor of immature myeloid cells. It has been very rarely reported as lateral cervical mass in English literature. Myeloid sarcoma has also been reported with marked eosinophilia. Here we present a 17 year old boy with lateral cervical mass and persistent eosinophilia. The mass was isointense in MRI and homogenously enhanced after contrast injection which...

Background Ewing’s sarcoma family is a group of small round cells tumors. The aim of this study is to evaluate clinicopathologic characteristics and outcome of Ewing’s sarcoma in children and adolescents in Yazd, Iran. Materials and Methods All patients under 19 years with documented pathology of Ewing’s sarcoma family tumor who referred to Shahid Ramazanzadeh Radiotherapy center between 2...

Uterine sarcomas are very unique tumors with mesodermial origin and accounting for 2-6% of uterine cancers. In general, uterine sarcomas are the most malignant tumors of the uterus. Their usual histologic types are endometrial estromal sarcoma, lieomyosarcoma and malignant mixed mullerian tumor or carcinosarcoma In this case report, a 19 year old woman with chief complaint of abnormal ute...

  Periarticular cyst and cystic soft tissue lesion around the knee are common. Synovial sarcoma is a rare and malignant soft tissue tumor accounting for approximately 5% of soft tissue sarcoma. A case is presented where a lesion adjacent to the joint line of the knee was diagnosed clinically and on imaging as a meniscal cyst. MRI signal was homogenous and no concomitant meniscal tears were seen...