Spontaneous subcapsular renal hematoma (SSRH) emerged as a complication of acute pyelonephritis (APN) is an extremely rare condition. We showed a patient aged 63 years hospitalized due to languor, febrility, abdominal pain accompanied by nausea and vomiting. Ultrasound (US) examination of the abdomen and multidetector computed tomography (MDCT) showed the presence of subcapsular hematoma of the left kidney with calculus in the initial part of the left ureter. Laboratory tests registered a positive inflammation syndrome, anemia and an increase in nitrogen compounds. Based on laboratory results, clinical presentation and imaging techniques it has been found that it is APN with spontaneous subcapsular hematoma. After application of non-surgical treatment which included antibiotic therapy with percutaneous drainage of hematoma, a good clinical response with regression of subjective symptoms and hematoma was obtained. On repeated US and MDCT after 18 months no pathological changes in the kidneys were registered. Spontaneous subcapsular hematoma extremely rare occurs as a result of APN associated with calculosis. The use of non-surgical treatment, which includes appropriate antibiotic therapy with percutaneous drainage of hematoma would represent a method of first choice.
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