PMC8612129_01
PMC8612129_02
From left to right; plain radiographs and ecchography of the right hip revealing a soft tissue mass with scattered calcifications.
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F1
Echography concluded on a non-growing, well-demarcated inhomogeneous muscular tumor without an argument for myositis (Figure 1).
From left to right; front t1 and t2-weighted MRI sequences and axial t1 MRI sequence of the right hip.
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F2
T2 sequences revealed diffuse dystrophic calcification deep in the mass (Figure 2).
The tumor consists of fat (f), bone (b), and cartilage (c).
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F3
Microscopic examination revealed a well-circumscribed mesenchymal tumor consisting of mature hyaline cartilage islands contiguous with bony trabeculae embedded in mature adipose tissue (Figure 3).