case_images: PMC8320545_01
case_images: Anterior view of the left ankle joint with swelling.
case_images: 10.1177_2050313X211035574-fig1.jpg
case_images: PMC8320545_01_10.1177_2050313X211035574-fig1.jpg
case_images: fig1-2050313X211035574
case_images: On examination, his left ankle joint was swollen without tenderness or warmth (Figure 1).
case_images: Anteroposterior and lateral views of left ankle joint showing narrowed joint space and subtalar joint involvement.
case_images: 10.1177_2050313X211035574-fig2.jpg
case_images: PMC8320545_01_10.1177_2050313X211035574-fig2.jpg
case_images: fig2-2050313X211035574
case_images: X-ray of the ankle region showed irregular outline at ankle mortise and loss of joint space with an irregular articular outline at subtalar joint (Figure 2).
case_images: MR image of the ankle joint showing marked loss of articular cartilage with associated bone marrow oedema in the subarticular region of the distal tibia.
case_images: 10.1177_2050313X211035574-fig3.jpg
case_images: PMC8320545_01_10.1177_2050313X211035574-fig3.jpg
case_images: fig3-2050313X211035574
case_images: The magnetic resonance imaging (MRI) showed a marked loss of articular cartilage with associated bone marrow oedema in the subarticular region of distal tibia extending to distal metaphyseal region (Figure 3).