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. Pyelonephritis is a common cause of flank pain, but its discomfort is usually described as a relatively mild dull ache rather than typical renal colic pain. Fever, chills, nausea, and vomiting are the most common symptoms, along with headache and a stiff neck.