case_images: PMC11766094_01
case_images: Radiographic evaluation revealed mild resorption at the prosthesis-bone interface, accompanied by signs of tibial and talar component loosening and alterations in the physiological bone contour (A). A periarticular mass extended medially and anteriorly from the tibial component (B). The mass was identified, and it is highlighted in red in both the anteroposterior (C) and lateral (D) views.
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case_images: Additionally, a periarticular mass was observed extending anteriorly from the tibial component, with diffuse intra- and perilesional ossifications (Figure 1).
case_images: A tenso-elastic mass (A) was observed, which contained a brownish-grey granular substance (B).
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case_images: The mass contained a brownish-grey granular substance (Figure 2).
case_images: Radiographic studies demonstrated successful fusion of the tibiotalar and subtalar joints in a neutral position, as observed in the anteroposterior (A) and lateral (B) views.
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case_images: Radiographic studies confirmed successful fusion of the tibiotalar and subtalar joints in a neutral position (Figure 3).
case_images: Histological slides examined under a microscope revealed fibrin and necrotic debris associated with fibrous tissue exhibiting chronic inflammatory infiltration and a fibro-histiocytic reaction (A). Additional findings included fibrin and necrotic debris with scattered histiocytes (B).
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case_images: Biopsy samples analyzed by a pathologist showed the presence of fibrin and necrotic debris associated with fibrous tissue showing chronic inflammatory infiltration and a fibro-histiocytic reaction, with scattered histiocytes (Figure 4).