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Glomus tumor. The location corresponds to the pulp of finger IV (a). The patient had the classical triad of symptoms: paroxysmal pain, pinpoint pain, and cold hypersensitivity, lasting for two years. In (b), UHFUS shows a well-delimited nodule in contact with the adjacent phalangeal bone (arrowhead), but no cortical deformity is present. No significant hyperemia on color Doppler was noticed. On CUS (c), the nodule was delineated only thanks to the help of the preliminary UHFUS exam.
