PMC6364119_01
Fibrous Tissue in Fascicles (arrow). H & E stain (100X).
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fig2
Microscopic examination revealed a poorly circumscribed lesion comprising three distinct components with vague, irregular, and organoid pattern formed by intersecting trabeculae of fibrous tissue of varying size and shape (Figure 2) along with loosely textured areas consisting of immature small round or stellate cells in a myxoid matrix (Figure 3).
Myxoid Areas. H & E stain (400X).
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fig3
Microscopic examination revealed a poorly circumscribed lesion comprising three distinct components with vague, irregular, and organoid pattern formed by intersecting trabeculae of fibrous tissue of varying size and shape (Figure 2) along with loosely textured areas consisting of immature small round or stellate cells in a myxoid matrix (Figure 3).
Mature Adipose tissue (arrow). H & E stain (100x).
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fig4
Variable amount of interspersed mature adipose tissue was present at the periphery of the lesion (Figure 4).
Alcian Blue Stain (arrows). Special stain (100x).
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fig5
However, special stain showed that mesenchymal matrix was positive for alcian blue stain (Figure 5).