A case of intracranial mesenchymal chondrosarcoma (IMC) was treated surgically at our institution. CT images of IMC have not been previously published; and a review of the literature found only one reported case with CT correlation [1). The oldest patient with a primary IMC previously reported was 51 years old [2]. We present a case occurring in a 61-year-old woman and describe the CT and angio...

Mesenchymal chondrosarcomas (MC) are rare and aggressive forms of chondrosarcoma. They are distinct tumors arising in unicentric or multicentric locations from both skeletal and extraskeletal tissues. The most affected region is the facial skeleton, especially the jaws. In this report, we present a case of MC primarily involving the mandible in a 60-year-old female patient.

s from the Conference of Polish Association of Neuropathologists “Biopsy research-challenge of modern neuropathology”

Primary cardiac chondrosarcoma is extremely rare with very few cases reported in the literature. Most cardiac chondrosarcomas described in the literature are secondary. We report herein a case of 22-year-old man who presented with easy fatigability, which the general practitioner diagnosed as mitral stenosis clinically. Echocardiography showed left atrial mass, possibly myxoma. The histopatholo...

SIRT1 belongs to the mammalian sirtuin family and plays an important role in deacetylating histone and nonhistone proteins. It is reported that SIRT1 is associated with tumor metastasis in several kinds of tumors. However, the effect of SIRT1 on the metastasis of chondrosarcoma cells is still unknown. In this study, we demonstrated that up and down-regulation of SIRT1 expression could significa...

Malignant phyllodes tumor is usually diagnosed by the presence of benign duct-like epithelium and malignant mesenchymal tissue. In addition to the usual fibrosarcomatous features, the mesenchymal component may show areas resembling osteogenic sarcoma, chondrosarcoma, liposarcoma, leiomyosarcoma, rhabdomyosarcoma, malignant mesenchymoma, and, very rarely, malignant fibrous histiocytoma. We prese...

Chondrosarcomas arising from soft tissues are rare. Two different varieties are described, myxoid and mesenchymal. We have collected nine cases of the tumour, five myxoid and four mesenchymal, from a review of 513 cases of chondrosarcoma seen between 1904 and 1988. We report the principal clinical, radiographical and histological differences between the two varieties and discuss their surgical ...

INTRODUCTION Extraskeletal chondrosarcoma (EMC) is a rare, aggressive neoplasm which has been seen in the soft tissue area. This soft tissue sarcoma is classified to myxoid and mesenchymal based on histologic criteria. The mesenchymal subtype has a poor prognosis. In approximately 50% of patient with EMC, we could observe soft tissue lesion and stippled calcification in the conventional radiogr...