![索引[英和]](img/pagetitles_sakuin_e-j.gif){kind=small}
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| racemous angioma | 蔓状血管腫 |
| radial artery | 橈骨動脈 |
| radiating pain | 放散痛 |
| radiation dermatitis | 放射線皮膚障害，放射線皮膚炎 |
| radiation gastritis | 放射線〔性〕胃炎 |
| radiation injury | 放射線損傷 |
| radiation necrosis | 放射線〔性〕壊死 |
| radiation pneumonitis | 放射線性肺〔臓〕炎，放射線肺臓炎 |
| radiation proctitis | 放射線直腸炎 |
| radiation-related colon cancer | 放射線による大腸癌 |
| radical excision | 根治切除 |
| radical hemorrhoidectomy | 根治的痔核切除 |
| radical laryngectomy | 根治的喉頭摘除 |
| radical lymph node dissection | 根治的リンパ節郭清 |
| radical mastectomy | 根治的乳房切断（切除），定型的乳房切除 |
| radical neck dissection 〈RND〉 | 根治的頸部〔リンパ節〕郭清 |
| radical operation | 根治手術 |
| radical orchiectomy (orchidectomy) | 根治的精巣摘除 |
| radical resection | 根治切除 |
| radiculitis | 神経根炎 |