PMC9633738_01
Pelvic axial-enhanced CT image showing a large intrauterine fluid collection (black continuous arrow) thinning the uterine wall (white dotted arrow) upstream of a 7 cm posterior isthmic tumor (black asterisk).
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No deep adenomegaly was detected, and the upper and lower urinary tract and digestive structures were radiologically normal (Fig. 1).
Microscopic examination (hematoxylin and eosin staining, magnification x20 on the right and x40 on the left) of the tumor showing the malignant epithelial proliferation made of transitional cells arranged in papillary sheets, with chorion invasion, resembling TCC of the urinary tract.
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