Mount Pleasant, South Carolina Health Index. Air quality in Mount Pleasant, South Carolina is 67 on a scale to 100 (higher is better). This is based on new measures of hazardous air pollutants from the EPA, called the National Air Toxics Assessment.
Hypoattenuation is a term used to describe areas that show up as whiter and brighter than normal on an x-ray or CT Scan. Hypoattenuating lesions are commonly referred to in regards to the liver or kidneys.
A hypoattenuating lesion is a type of abnormal tissue that can show  up on computed tomography. On the scan, the lesion shows up as  brighter and whiter than what is conside â¦ red normal. The lesion can  indicate an array of medical issues and it warrants further  investigation.