PMC8262157_01
Radiographic features of the lesion*. (A) Axial T2-weighted MRI showed a 45 x 36x44-mm lesion with mixed signals at the left lower posterior of the bladder. (B) Sagittal fat-suppressed T2-weighted MRI showed that the cystic-solid lesion passed through the prostate into the posterior urethra. (C) Contrast-CT showed a cystic-solid mass with obvious enhancement of the cyst wall communicating with the urethra. (D) Vasography showed a filling defectan in the cystic structure.
pore-27-528050-g001.jpg
PMC8262157_01_pore-27-528050-g001.jpg
F1
Imaging studies (Figure 1) and an endoscopic examination (Figure 2) were subsequently performed.
Cystoscopic features of the lesion. (A) Spherical mucus-like barrier in the prostatic urethra under cystoscopy. (B) The cystoscope entered the right seminal vesicle. (C) Cystoscopy showed a mucoid substance and multiple papillary neoplasms in the cystic cavity. (D) Jelly-like substance sucked out from the cystic cavity.
pore-27-528050-g002.jpg
PMC8262157_01_pore-27-528050-g002.jpg
F2
Imaging studies (Figure 1) and an endoscopic examination (Figure 2) were subsequently performed.
Pathological features of the lesion. (A) General view of the resected specimen. (B) Hematoxylin and eosin (HE) staining of the neoplasm (100x). (C) HE staining of the mucinous area (100x). (D) Immunohistochemistry showed strong CDX-2+ expression.
pore-27-528050-g003.jpg
PMC8262157_01_pore-27-528050-g003.jpg
F3
Immunohistochemistry showed PSA (-), P504S (+), 34betaE12 (+/-), P63 (-), ERG (-), CK7 (+), CK20 (+), CDX-2 (3+), SATB-2 (-), CEA (-), AR (-), Ki-67 (40%+), PAX2 (-), PAX8 (-) and MUC6 (2%+) (Figure 3).