Cingulate island sign
Cingulate Island Sign
The Cingulate Island Sign (pronunciation: sing-gyuh-late island sign) is a radiological sign used in the diagnosis of Alzheimer's disease. It is characterized by the relative preservation of the cingulate gyrus in the presence of severe atrophy of the surrounding brain regions.
Etymology
The term "Cingulate Island Sign" is derived from the Latin word "cingulum", meaning "girdle", and the English word "island". This is in reference to the appearance of the cingulate gyrus as an isolated 'island' in the midst of atrophied brain tissue in Alzheimer's disease.
Usage
The Cingulate Island Sign is primarily used in the diagnosis of Alzheimer's disease. It is one of several radiological signs that can be observed in MRI scans of the brain. The presence of the Cingulate Island Sign is indicative of Alzheimer's disease, particularly in its early stages.
Related Terms
- Alzheimer's disease: A progressive neurodegenerative disease that affects memory, thinking, and behavior. It is the most common cause of dementia in the elderly.
- Cingulate gyrus: A part of the brain situated in the medial aspect of the cerebral cortex. The cingulate gyrus is involved in various cognitive functions, including memory and emotion.
- MRI: Magnetic Resonance Imaging, a type of imaging technique used in medicine to visualize the structure and function of the body.
- Radiological sign: A characteristic pattern or feature that can be observed in medical imaging studies, such as an MRI or CT scan.
External links
- Medical encyclopedia article on Cingulate island sign
- Wikipedia's article - Cingulate island sign
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