What is the name of a renal infection caused by gram-negative bacilli from the intestines?

Acute pyelonephritis is a renal infection primarily caused by gram-negative bacilli, often originating from the gastrointestinal tract. This condition typically develops when bacteria ascend from the lower urinary tract, resulting in kidney infection. The most common pathogens associated with acute pyelonephritis include Escherichia coli, which is a gram-negative bacillus found in the intestines.

In this context, the acute nature of the infection is characterized by rapid onset and symptoms such as fever, flank pain, and dysuria. This distinguishes it from chronic pyelonephritis, which involves long-term kidney damage and is often a result of recurrent kidney infections rather than acute bacterial invasion.

Focal renal infection, while it may involve localized areas within the kidney, does not specifically reference the characteristic spectrum of acute infection caused by gram-negative bacilli. Meanwhile, acute glomerulonephritis is different as it primarily involves inflammation of the glomeruli, not directly resulting from a bacterial infection but rather featuring immune-mediated processes.

Thus, acute pyelonephritis is the most accurate answer to the question regarding a renal infection caused by intestinal gram-negative bacilli, highlighting its specific causative agents and the typical clinical presentation associated with the infection