Figure 3. 55-year-old female with limited scleroderma who smokes. Pre- and post-angioplasty subtraction images of the left thigh and calf. (a) Pre-angioplasty angiography shows occlusion of the left superficial femoral artery as far as the adductor canal. This was dilated, with a very satisfactory post-angioplasty appearance (b). However, images over the calf (c) show occlusion of two of three calf vessels, with poor collateralformation, the likely explanation for the poor clinical result.

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