A few ischemic foci in the frontal lobes bilaterally usually does not affect life expectancy.
Cerebral ischemic foci, which is not a medical diagnosis, is not a name of a disease, and is found by imaging; it is an imaging sign. The extreme majority are atherosclerosis, that is, secondary changes in the cerebral vasculature as a result of systemic atherosclerosis caused by chronic hypertension, hyperlipidemia, and diabetes mellitus.
Acute stenosis of small vessels deep within the brain often triggers small cavernous infarcts, whereas chronic stenosis, with insufficient blood supply for a long period of time, results in ischemic foci. There are also a few cases of small vessel stenosis caused by systemic metabolic or hereditary diseases.
Ischemic foci are described as bilateral frontal ischemic foci when they are located in both frontal lobes, are relatively rare or hourly often without clinical symptoms, and do not affect normal life expectancy. However, risk factors need to be controlled promptly to avoid further progression of the ischemic foci.