figure a

Fig. 1 AP and lateral radiographs of the right index finger

figure b

Fig. 2 (a) Coronal T1W TSE, (b) sagittal STIR, and (c) axial SPAIR MR images

figure c

Fig. 3 Axial Doppler US image

figure d

Fig. 4 Photomicrograph of H and E stain of biopsy specimen. (× 10)