damage to a portion of the spinal cord from exposure to x-rays or other high-energy radiation; most often affects the cervical segments; depending on their time of onset and persistence, two forms are recognized: the early type which appears within 6 months following irradiation and may be transient, and the late, delayed type, which appears more than 6 months after radiation and is typically chronic and progressive.
Synonym(s): radiation myelitis
Farlex Partner Medical Dictionary © Farlex 2012
ra·di·a·tion my·e·lop·a·thy(rādē-āshŭn mīĕ-lopă-thē)
Spinal cord damage from exposure to x-rays or other high-energy radiation; most often affects the cervical segments.
Medical Dictionary for the Dental Professions © Farlex 2012