PMC9706000_01
Enhanced CT scan shows pelvic hemorrhage. (A) Side view, (B) Front view.
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A pelvic CT scan showed that the bladder can be filled, there is a 7.4cm-diameter spherical kind of oval low-density shadow above the bladder and a space-occupying lesion above the bladder, as well as large number of pelvic lesions with massive accumulation of blood about 1000ml. ( Figures 1A, B ) The initial diagnosis was bladder mass and pelvic hemorrhage based on the patient's symptoms and auxiliary examinations, and the specific cause is unknown.
Macroscopic view of pathological specimens.
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Gross pathology showed a 12*6.5*4 cm tumor that was gray-white, gray-red and translucent. ( Figure 2 ) Microscopic examination showed spindle cell tumor with mucinous background, chronic inflammatory cell infiltration, and erythrocyte extravasation, with unclear local boundaries and invasion of surrounding muscle tissue.
Final pathology results showed extensive fibrocytic and inflammatory cell infiltration.
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Immunohistochemical findings: CK broad (+), Vimentin (+), ALK (+), SMA (partially weak +), Desmin (partially +), S-100 (-), Ki-67 index (5%)( Figure 3 ).