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We show an unusual presentation of a schwannoma that was located in the ungual bed of the left great toe. The clinical, color Doppler ultrasound imaging, and histologic findings are shown to illustrate the case. This type of neurogenic tumor and the ultrasound presurgical imaging support should be considered when dealing with subungual tumors of the foot.
The soleal sling may be a site of tibial nerve entrapment. Objective diagnosis of this syndrome is difficult with current nerve conduction study techniques, magnetic resonance imaging, and neurosensory testing. Diagnostic ultrasound is ideally suited to visualize the tibial nerve statically and dynamically as it enters the soleal sling, thus making an objective diagnosis of soleal sling impingement much easier.
