Progressive kidney hematoma post-interventional biopsy
Authors: Sebastian Leschka, MD *; Andreas Blaha **
*Institute of Diagnostic Radiology, University Hospital Zurich, Zurich, Switzerland
**Business Unit CT, Siemens Healthcare, Forchheim, Germany | maalis 10, 2010
To determine further therapy, the 21-year-old patient, status after hepatitis B, was referred to the radiology department. Here a biopsy of the renal parenchyma was performed upon which a hemorrhage occurred accompanied by the formation of a hematoma.
A 3-phase kidney CT was performed. Due to the nephritic syndrome only 60 ml of contrast media with a flow rate of 4 ml/s followed by a 60 ml NaCl bolus (4 ml/s) was injected for the kidney CTA.
In the native phase, an accumulation of liquid at the lower left renal pole was seen. The arterial phase showed an extravasation of contrast media out of the left kidney. An inhomogeneous hematoma measuring 15 x 7.5 x 5 cm was detected around the left kidney. Both kidneys perfused symmetrically, unique renal arteries were seen bilaterally. In the venous phase, a normal renal calyx developed on both sides.
Despite the low quantity of applied contrast media, an enhancement in the left kidney could be identified due to a quick acquisition time of 0.7 s. The SOMATOM Definition Flash allows a precise and rapid diagnosis with a reduced effective patient radiation dose of 3.27 mSv.
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