PMC10033541_01
Results of computed tomography urography. Cross sections: panel (A) (arterial phase) and panel (B) (delay 2 phase). Sagittal section: panel (C) showed a lobulated tumor located in the bladder's posterior wall with its clear boundary. The size was approximately 3.5 x 2.4 x 2.1 cm. The enhanced CT scan indicated that the tumor was significantly enhanced.
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The enhanced CT scan indicated that the tumor was significantly enhanced ( Figure 1 ).
Panel (A) (HE, x40) and panel (B) (HE, x200) showed that the tumor cells were epithelioid, spindle-shaped, and vacuolar in the nucleus. The nucleolus was visible, and the nuclear membrane was clear. Immunohistochemical results are as follows. Panel (C) CD1a (x100, ++), for sarcomatoid area +. panel (D) S100 (x100, ++), for sarcomatoid area +. panel (E) CD27 (x100, ++), for sarcomatoid area +. panel (F) Ki67 (35%).
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In combination with immunohistochemistry, LCS was finally confirmed ( Figure 2 ).