Arteriography of an adult manual labourer presenting with numbness and
cold intolerance in the middle and ring fingers of the right hand dem
onstrated filling defects in the digital arteries of these two fingers
associated with a corkscrew-like configuration of the ulnar artery in
Guyon's canal. This arterial segment was subsequently excised reveali
ng intramural necrosis and fibrosis and nonocclusive intraluminal thro
mbosis. An arteriogram performed 2 years previously for an unrelated c
ondition revealed a similar but less pronounced corkscrew configuratio
n of the artery, suggesting that this finding could be a marker for ar
terial injury which may eventually lead to embolization or thrombosis
with accompanying ischaemic symptoms.