Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «R»:
Retinopathy: Any disease of the retina, the light-sensitive membrane at the back of the eye. The type of retinopathy is often specified. Arteriosclerotic retinopathy is retinal disease due to arteriosclerosis ("hardening of the arteries"). Diabetic retinopathy is retinal disease associated with dia...
Retinopathy, arteriosclerotic: See: Arteriosclerotic retinopathy....
Retinopathy, diabetic: See: Diabetic retinopathy....
Retinoschisis: Splitting of the retina. From retina + -schisis (splitting)....
Retinoschisis, juvenile: See: Juvenile retinoschisis....
Retinoschisis, X-linked: See: Juvenile retinoschisis....
Retinoschisis, X-linked juvenile
Retinoschisis, X-linked juvenile: See: Juvenile retinoschisis....
Retraction syndrome: See: Duane syndrome....
Retrodiagnosis: Retrospective diagnosis. The proposal that the mysterious illness that killed Alexander the Great more than 2,300 years ago was West Nile fever is an exercise in retrodiagnosis....
Retrograde amnesia: Amnesia in which the lack of
memory relates to events that occurred before a traumatic
event. Retrograde amnesia is in contrast to antegrade amnesia in which the lack of memory relates to events that occurred after a traumatic event....
Retrograde intrarenal surgery (RIRS)
Retrograde intrarenal surgery (RIRS): Retrograde intrarenal surgery (RIRS) is a procedure for doing surgery within the kidney using a viewing tube called a fiberoptic endoscope.
In RIRS the scope is placed through the urethra (the urinary opening) into the bladder and then through the ureter into t...
Retromingent: Urinating backwards. Also an animal such as a raccoon that urinates backwards. As in: "You have revealed yourself as a miserable, carping, retromingent vigilante, and I for one am sick of wasting my time communicating with you" (Benjamin C. Bradlee, Editor, The Washington Post). From...
Retroposition: 1. Simple backward displacement of a structure or organ such as the uterus.
2. In genetics, the integration of a sequence derived from RNA into a DNA genome. Messenger RNA (mRNA) is reverse-transcribed and reintegrated into the genome. Retroposition is an important mechanism of gene ...
Retropubic prostatectomy: Surgical removal of the prostate through an incision in the abdomen....
Retrospective: Looking backward on the past, on what has already taken place. A retrospective study looks backward in time, usually using medical records and interviews with patients who already known to have or have had a disease....