Fig. 11From: CT angiography and MRI of hand vascular lesions: technical considerations and spectrum of imaging findingsA pitfall in a case of HHS in a 45-year-old manual worker with an occlusion of the UA. a–c Axial T1-weighted (a) and T2-weighted (b) MR images and contrast-enhanced T1-weighted fat-suppressed sequence (c) showing a subtle thickening and parietal enhancement of the UA (arrow). The thrombus should not be confused with a flow phenomenonBack to article page