PMC7652630_01
Cut section of the uterus showing an intramural well-defined bright yellow homogenous mass.
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fig1
During gross pathologic evaluation, dissection of the uterine corpus showed an intramural well-demarcated mass with a greasy yellow cut surface measuring 4 x 4 x 4 cm (Figure 1).
Mature white adipose tissue with bundles of smooth muscle at periphery (x40, H&E).
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fig2
On microscopic examination, the mass was entirely composed of mature adipose tissue with bundles of smooth muscle at periphery, and the histology confirmed pure uterine lipoma (Figure 2).
(a) Bland hepatocytes surrounded by fibrous septa that contain artery branches and variable degree of ductular reaction (x100, H&E). (b) Immunohistochemistry study for glutamine synthetase (GS) showing a map-like pattern of positivity in hepatocytes (x40).
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fig3
Glutamine synthetase (GS) stained the hepatocytes in a map-like pattern and confirmed the diagnosis of FNH (Figure 3).