Of the common causes for exudative pleural effusions, parapneumonic effusions have the highest diagnostic priority. Even in the face of antibiotic therapy, infected pleural effusions can rapidly coagulate and organize to form fibrous peels that might require surgical decortication.
Retrogradation is the landward change in position of the front of a river delta with time.etrogradation is the landward change in position of the front of a river delta with time.
Retrolisthesis Vertebral Misalignment. Retrolisthesis is the exact opposite of an anterolisthesis condition and is sometimes known by the diagnostic term retrospondylolisthesis.This spinal abnormality describes a condition in which one or more vertebral bones move out of alignment with the bones above, and/or below, towards the rear of the body.etrolisthesis Vertebral Misalignment. Retrolisthesis is the exact opposite of an anterolisthesis condition and is sometimes known by the diagnostic term retrospondylolisthesis.