Nondisplaced Tear. Fig. 2. Subcortical cysts and posterior capsular stripping in a 16-year-old male who had right shoulder pain when throwing for 3 months. (A) Subcortical cysts (arrow) in the greater tuberosity at the insertion of the supraspinatus tendon are seen as high signal intensity on a fat-suppressed T2-weighted image. (B) Axial gradient echo T2-weighted image shows a nondisplaced tear of the posterior labrum and capsular stripping (arrow). Fig. 3. Posterosuperior labral tear and impaction of the greater tuberosity in a 17-year-old female pitcher who had right shoulder pain and impingement for 5 years.
A key tool in this effort is the Air Quality Index, or AQI. EPA and local offi-cials use the AQI to provide simple information about your local air quality, how unhealthy air may affect you, and how you can protect your health.
Here's what the readings mean: 1  If the AQI reading is below 16, the air quality is in the very good category. 2  If the AQI reading is in the range of 16 to 31, the air quality is in the good category. If the AQI reading is in the range of 32 to 49, the air quality is in the moderate category, and there may be some adverse effects for very sensitive people. If the AQI reading is in the range of 50 to 99, the air quality is in the poor category, and may have adverse effects for sensitive members of human and animal populations, and may cause significant damage to vegetation and property.