| D009502 |
Neutrons |
Electrically neutral elementary particles found in all atomic nuclei except light hydrogen; the mass is equal to that of the proton and electron combined and they are unstable when isolated from the nucleus, undergoing beta decay. Slow, thermal, epithermal, and fast neutrons refer to the energy levels with which the neutrons are ejected from heavier nuclei during their decay. |
Neutron |
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| D011882 |
Radiotherapy, High-Energy |
Radiotherapy using high-energy (megavolt or higher) ionizing radiation. Types of radiation include gamma rays, produced by a radioisotope within a teletherapy unit; x-rays, electrons, protons, alpha particles (helium ions) and heavy charged ions, produced by particle acceleration; and neutrons and pi-mesons (pions), produced as secondary particles following bombardment of a target with a primary particle. |
Megavolt Radiotherapy,High-Energy Radiotherapy,Radiotherapy, Megavolt,High Energy Radiotherapy,Radiotherapy, High Energy |
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| D002813 |
Chondrosarcoma |
A slowly growing malignant neoplasm derived from cartilage cells, occurring most frequently in pelvic bones or near the ends of long bones, in middle-aged and old people. Most chondrosarcomas arise de novo, but some may develop in a preexisting benign cartilaginous lesion or in patients with ENCHONDROMATOSIS. (Stedman, 25th ed) |
Chondrosarcomas |
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| D005214 |
Fast Neutrons |
Neutrons, the energy of which exceeds some arbitrary level, usually around one million electron volts. |
Fast Neutron,Neutron, Fast,Neutrons, Fast |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D012509 |
Sarcoma |
A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant. |
Sarcoma, Epithelioid,Sarcoma, Soft Tissue,Sarcoma, Spindle Cell,Epithelioid Sarcoma,Epithelioid Sarcomas,Sarcomas,Sarcomas, Epithelioid,Sarcomas, Soft Tissue,Sarcomas, Spindle Cell,Soft Tissue Sarcoma,Soft Tissue Sarcomas,Spindle Cell Sarcoma,Spindle Cell Sarcomas |
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| D012983 |
Soft Tissue Neoplasms |
Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc. |
Neoplasm, Soft Tissue,Neoplasms, Soft Tissue,Soft Tissue Neoplasm |
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