| chondrosarcoma, mesenchymal | A rare aggressive variant of chondrosarcoma, characterised by a biphasic histologic pattern of small compact cells intermixed with islands of cartilaginous matrix. Mesenchymal chondrosarcomas have a predilection for flat bones; long tubular bones are rarely affected. They tend to occur in the younger age group and are highly metastatic. (devita jr et al., cancer: principles & practice of oncology, 3d ed, p1456) (12 Dec 1998) |
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| chondrosarcoma | <oncology, tumour> A malignant neoplasm derived from cartilage tissue (chondroblasts). (27 Sep 1997) |
| mesenchymal | Relating to the mesenchyme. (05 Mar 2000) |
| mesenchymal cells | Fusiform or stellate cell's found between the ectoderm and endoderm of young embryos; the shape of the cell's in fixed material is indicative of the fact that in life they were moving from their place of origin to areas where they would become reaggregated and specialised; most mesenchymal cell's are derived from established mesodermal layers, but in the cephalic region they also develop from neural crest or neural tube ectoderm; they are the most strikingly pluripotential cell's in the embryonic body, developing at different locations into any of the types of connective or supporting tissues, to smooth muscle, to vascular endothelium, and to blood cells. (05 Mar 2000) |
| mesenchymal epithelium | The flat epithelium derived from mesenchymal cells found lining certain connective tissue spaces such as the anterior chamber of eye, perilymph spaces in the ear, and subdural and subarachnoid spaces. (05 Mar 2000) |
| mesenchymal hyloma | <tumour> A neoplasm of tissue derived from the mesoblastic pulp or mesenchyme. (05 Mar 2000) |
| mesenchymal tissue | Embryonic connective tissue. See: mesenchyme. (05 Mar 2000) |