Glomus tumors which usually arise in the subunguis may be difficult to diagnose when they occur in unusual locations. We report two cases of glomus tumor in the extra-subunguis. One arised in the subcutaneous of the left proximal knee and the other arised in the left great toe. Magnetic Resonance Imaging of both two cases disclosed a low intensity signal on T1-weighted images and a high intensity signal on T2-weighted images. Both tumors were completely excised. We believe that MR imaging is useful for the preoperative evaluation of soft tissue tumors of these regions.
