Fig. 2From: The clinical importance of color Doppler ultrasonography in puncture related complications of hemodialysis vascular accessGray scale images show a hematoma at the puncture site, anterior to the venous side of AVF, a sagittal view shows site of puncture (arrowed) and vein lumen reduction by the mass effect of hematoma, b shows the site& dimensions of the hematomaBack to article page