PMC6914893_01
Gross specimen consists of three irregular portions of ragged skeletal muscle and bone measuring 5.5, 7, and 12.5 cm in the greatest dimension.
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fig1
The specimen grossly consisted of three irregular portions of ragged skeletal muscle and bone measuring 5.5, 7, and 12.5 cm in the greatest dimension (Figure 1).
Specimen radiograph demonstrates both thick cortical and lacy trabecular bone irregularly distributed through the skeletal muscle fragments (12 cm, 7 cm, and 5.5 cm).
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fig2
The specimen was radiographed using the Faxitron and showed both trabecular and cortical bone within the skeletal muscle (Figure 2).
Trabecular bone (circle) with bone marrow (square) wrap around bundles of skeletal muscle (triangle) as is typical of myositis ossificans (2x magnification, H&E stain).
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fig3
Bone encircled and was immediately adjacent to skeletal muscle fibers (Figures 3 and 4).
Cortical bone (top) demonstrating cement lines adjacent to skeletal muscle shown in cross section with peripherally located nuclei and myofibrils (10x magnification, H&E stain).
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fig4
Bone encircled and was immediately adjacent to skeletal muscle fibers (Figures 3 and 4).