PMC8366670_01
Preoperative photographs of the tumor, dorsal view (A), palmar view (B).
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A 68 year-old female, smoker, presented to the ER with an ulcerated mass of the dorsum of the 5th finger involving the proximal phalanx to the DIP joint (Figure 1).
Post-excisional photographs of tumor: inferior (A) and lateral (B) views.
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Excision with the overlying skin was performed down to a tumor less surgical plane, preserving the extensor apparatus (Figure 2).
Intra-operative views after surgical excision of the tumor with preservation of the extensor apparatus (A) and after raising the flap (B).
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The resulting defect was covered with a 4th dorsal metacarpal artery perforator flap and the donor area primarily closed (Figure 3).
Fibro-osseous pseudotumor of digits. The lesion presents as a well-circumscribed dermal mass, with epidermal ulceration. Hematoxylin-eosin x 25.
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Cells have bland cytology and no necrosis or mitotic figures are seen, compatible with the diagnosis of FOPD (Figure 4 and 5).
Fibro-osseous pseudotumor of digits. At medium power, the mixture of arranged fibroblasts and myofibroblasts and the deposits of osteoid is rimmed by uniform osteoblasts. Hematoxylin-eosin x 100.
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Cells have bland cytology and no necrosis or mitotic figures are seen, compatible with the diagnosis of FOPD (Figure 4 and 5).
Post-operative views at 22 months showing complete wound healing without functional limitation: dorsal (A), and medial (B,C) views.
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The patient was followed for 22 months with no evidence of recurrence (Figure 6).