PMC6360910_01
Initial radiograph showing soft-tissue prominence with a mostly radiolucent lesion with peripheral calcification volar to the base of the middle phalanx.
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F1
The radiograph (Fig 1) showed soft-tissue prominence with a mostly radiolucent lesion with peripheral calcification volar to the base of the middle phalanx.
Radiograph at 6 months postoperatively, following initial exploration and removal. This shows a calcified mass at the previous operative site, separate from the underlying cortex.
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F2
The radiograph (Fig 2) showed recurrence of a calcified mass that appeared separate from the underlying cortex.
Lateral magnetic resonance scans at the second recurrence following excision showing the lesion on T1- and T2-weighted images.
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F3
The MRI revealed a nonspecific appearance of the lesion (Fig 3) but favored it to be a periosteal chondroma.
Radiograph at the second recurrence showing a calcified lesion along the volar and radial border of the proximal interphalangeal joint, the larger focus distally measuring up to 8 mm.
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F4
Repeat radiography (Fig 4) showed a more well-defined calcified lesion along the volar and radial border of the PIPJ, the larger focus distally measuring up to 8 mm.
Intraoperative photographs taken after the second recurrence and third exploration, more than 2 years following the initial laceration.
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F5
Intraoperative findings showed a bony mass arising from the proximal radial-volar base of the middle phalanx (Fig 5).