Extensive post-bioptic subcapsular hematoma; the anecogenicity of the effusion indicates that the bleeding is recent, but it is not possible to obtain reliable information as to whether bleeding still exists. Size is an unreliable parameter in these cases. In the presence of post-biopsy hematoma, non-invasive dynamic contrast studies (CEUS or contrast-enhanced CT) can be very useful to evaluate a bleeding source and any rarer post-biopsy vascular complications.