Renal abscess

A renal abscess is a pus-filled capsule from pyogenic destruction of renal parenchyma with complete loss of function, common in upper urinary obstruction, usually developing from acute pyelonephritis with necrosis. Diagnosis relies on abdominal ultrasound and CT; diet should be easy to digest, high in calories and vitamins.

Common Symptoms

Epigastric mass; fever; hematuria; lumbar pain with renal percussion tenderness; frequency with urgency and dysuria

Causes

A renal abscess usually develops from acute pyelonephritis progressing to necrosis forming a pus cavity; diabetes and infectious stones are common predisposing factors. Occasionally a secondarily infected renal cyst forms one. Subcapsular abscess may progress to perinephric abscess. Pathogens are usually gram-negative bacilli; S. aureus abscess may follow staphylococcal bacteremia elsewhere.

Treatment

Medication, supportive treatment

Prevention

Treat urinary infection and obstruction promptly; control diabetes.

Recommended Department

It is recommended to visit the nephrology department; before the visit you may first book an appointment and connect with experts through this platform.

Warm reminder: The above information is provided for health education reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek care at a regular hospital in time.