Intrarenal mycotic aneurysm.

Area of Science:

• Nephrology
• Infectious Diseases
• Vascular Surgery

Background:

• Catheterization is a common medical procedure that can lead to complications.
• Escherichia coli septicemia is a serious bloodstream infection.
• Mycotic aneurysms are infections of blood vessels that can lead to rupture.

Observation:

• A 67-year-old man developed Escherichia coli septicemia post-catheterization.
• The patient subsequently experienced left renal hemorrhage.
• The hemorrhage was attributed to an intrarenal mycotic aneurysm.

Findings:

• Non-surgical management was chosen due to clinical circumstances.
• Treatment involved multiple blood transfusions and intravenous antibiotics.
• Subsequent renal arteriography confirmed spontaneous healing of the mycotic aneurysm.

Implications:

• This case highlights a rare but serious complication of catheterization and septicemia.
• Non-surgical treatment can be effective for intrarenal mycotic aneurysms.
• Spontaneous resolution of mycotic aneurysms is possible, warranting careful monitoring.