PMC9973390_01
A CT scan (with contrast) of the abdomen. An infected hydatid cyst of the liver in a 47-year-old woman. A contrast-enhanced CT scan shows a cystic lesion and collapsed membranes in the right lobe of the liver (black arrow).
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FIG1
Grocott methenamine silver (GMS) stains the cystic wall
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FIG2
These features are compatible with hydatid cysts (Figures 2-4).
Protoscolex of Echinococcus showing hooklets (arrow)
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FIG3
These features are compatible with hydatid cysts (Figures 2-4).
Direct microscopic examination (at 40x magnification) showing protoscoleces. Note the row of hooklets (arrow).
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FIG4
These features are compatible with hydatid cysts (Figures 2-4).