There are many types and causes of head injury, but, by far, the most common are concussions related to motor vehicle accidents and contact sports. Concussion comes from the Latin âConcutereâ, which means to shake violently.
Noun. 1. pyelonephritis-inflammation of the kidney and its pelvis caused by bacterial infection. urinary tract infection-any infection of any of the organs of the urinary tract. acute pyelonephritis-pyelonephritis resulting from the spread of a bladder infection.
Pyelonephritis: kidney bacterial infection. Hydronephrosis: obstruction of urine flow results in collection or the urine in the bladder and kidneys, increased pressure can cause damage. Chemical nephrosis: the ingestion of certain poisonous substances can cause renal failure.yelonephritis: kidney bacterial infection. Hydronephrosis: obstruction of urine flow results in collection or the urine in the bladder and kidneys, increased pressure can cause damage. Chemical nephrosis: the ingestion of certain poisonous substances can cause renal failure.