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Fig. 2B —54-year-old woman with ruptured, solid-appearing ganglion of finger. Longitudinal sonographic image (A) shows ruptured, solid-appearing ganglion of finger. Calipers delineate margins of ganglion. Power Doppler sonogram (B) shows increased flow. This lesion was initially interpreted on sonography as giant cell tumor, hemangioma, or soft-tissue tumor. Subsequent MRI reported giant cell tumor. At surgical pathology, ganglion was diagnosed.