case_images: PMC11629251_01
case_images: Hematoxylin and eosin staining of resected bladder tumor tissue. The tumor cells formed papillary or tubular structures. The proliferation of tumor cells, mainly signet ring cells, was also observed (red arrows), as well as marked mucus production (*). Magnification, x 200.
case_images: gr1.jpg
case_images: PMC11629251_01_gr1.jpg
case_images: fig1
case_images: The patient was pathologically diagnosed with primary bladder mucinous adenocarcinoma (Fig. 1) and referred to our hospital.
case_images: Bladder magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG-PET/CT) images. T2-weighted MRI showing a broad-base mass bulging into a lumen, extending from the posterior wall of the bladder to the right (A). Diffusion-weighted MRI of the dorsal aspect of the bladder led to the suspicion of extravesical and uterine involvement (B). 18F-FDG-PET/CT image showing para-aortic lymph node metastasis with maximum standardized uptake value = 4.1 (C) and internal iliac lymph node metastasis (D) (red arrows).
case_images: gr2.jpg
case_images: PMC11629251_01_gr2.jpg
case_images: fig2
case_images: Magnetic resonance imaging revealed an extensive mass bulge from the posterior wall of the bladder into the lumen, leading to the suspicion of extravesical extension and invasion into the uterus (Fig. 2A and B). An 18F-fluorodeoxyglucose-positron emission tomography/computed tomography scan showed multiple lymph node metastases in the para-aortic and internal iliac lymph nodes (Fig. 2C and D).