PMC7604590_01
(a) Skin lesion at the 2nd admission. (b) X-ray film of the right hand demonstrating a wedge-formed radio-opaque foreign body in the soft tissue of the lateral aspect of the 1st phalanx of the middle finger. Inset: ultrasound detail of the foreign body insertion site.
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Three weeks later, the patient returned with a tender, slow-growing, 8 mm large inflammatory nodule in the medial aspect of the first phalanx of the right middle finger (Figure 1(a)). Ultrasound and X-ray imaging of the area revealed the presence of a foreign body located at the site of the emerging granuloma, immediately beneath the skin (Figure 1(b)).