Renal cortical abscess

Introduction to renal cortical abscess Renal cortical abscess (90%) is caused by Staphylococcus aureus from distant infections (often skin infections) by blood. Common causes are intravenous, diabetes and hemodialysis. Ascending infection rarely causes renal cortical abscess, begins to form a small abscess and then gradually enlarges and fuses into a thick wall inflammatory mass filled with pus. Finally, the renal capsule can be worn through the renal capsule to form a perirenal abscess. Most renal cortical abscesses involve one side (97%) and occur on the right side (63%). basic knowledge The proportion of illness: 0.006% Susceptible people: no specific population Mode of infection: non-infectious Complications: perirenal abscess

Cause of renal cortical abscess

90% are caused by Staphylococcus aureus from distant infections (often skin infections) by blood. Common causes are intravenous, diabetes and hemodialysis.

Renal cortical abscess prevention

Actively treat the infection of Staphylococcus aureus.

Renal cortical abscess complications Complications, perirenal abscess

Can be complicated by perirenal abscess embolism.

Renal cortical abscess symptoms common symptoms abdominal pain nausea fatigue low back pain cold war weight loss

Renal cortical abscess occurs in young and middle-aged patients between the ages of 20 and 40. The male to female ratio is 3:1. The typical clinical features are rapid onset, chills, fever, low back pain, and tenderness of the ribs. In the early stage of the disease, the abscess has not yet broken into the renal pelvis. Before the renal pelvis, there is no urinary symptoms. Physical examination can sometimes reveal swelling of the waist, painful mass in the lateral abdomen, and disappearance of the physiological lordosis.

Examination of renal cortical abscess

Laboratory examination: blood to moderate to severe leukopenia and nuclear left shift, before the abscess has not broken into the renal pelvis and renal pelvis, urine is normal, urine culture is sterile growth, blood culture is often negative, according to kidney disease, renal damage The severity of the serum creatinine and urea nitrogen can be normal or elevated, and the patients with diabetic nephritis have positive urine glucose and elevated blood sugar.

Imaging examination : imaging diagnosis of differential diagnosis of renal cortical abscess, excretory urography usually only found some non-specific changes, renal cortical abscess increased, you can find space-occupying lesions Image, gallium (Ga67) citrate and indium In111 traced white blood cells for radioisotope scanning for diagnosis, renal cortical abscess fusion and formation of pus-filled thick-walled mass, kidney B-ultrasound can be confirmed, but In the early stage of abscess formation, renal ultrasonography is easy to misdiagnose kidney abscess as renal tumor. Similarly, renal angiography can not distinguish renal abscess from ischemic or cystic renal tumor. The most accurate image examination for diagnosis of renal abscess. It is a CT scan. Under the guidance of ultrasound or CT, puncture and pus can not only confirm the diagnosis and determination of pathogenic bacteria, but also establish a drainage channel for treatment.

Diagnosis and diagnosis of renal cortical abscess

diagnosis

Diagnosis can be based on medical history, clinical symptoms, and laboratory tests.

Differential diagnosis

Need to be differentiated from kidney tumors.

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