Bitmap images are resolution dependent. Resolution refers to the number of pixels in an image and is usually stated as dpi (dots per inch) or ppi (pixels per inch) . Bitmap images are displayed on your computer screen at screen resolution: approximately 100 ppi.
1 Gonorrhea and chlamydia are the most common causes of epididymitis in young, sexually active men. 2  Other infections. 3  For boys and men who aren't sexually active, epididymitis can be caused by a nonsexually transmitted bacterial infection.
In more than 80 percent of cases of acute pyelonephritis, the etiologic agent is Escherichia coli. 7 Other etiologic causes include aerobic gram-negative bacteria, Staphylococcus saprophyticus, and enterococci.