case_images: PMC10894314_01
case_images: Transverse section of computed tomography of kidney, ureter, bladder showing a large multilobulated soft tissue density mass (Orange arrow) noted in retroperitoneum completely encasing aorta (Blue arrow) suggestive of a conglomerated lymph nodal mass. The mass is also causing variable external mass effect/encasement of mid-portion of both ureters leading to bilateral proximal moderate hydroureteronephrosis. White arrow indicates inferior vena cava.
case_images: cureus-0016-00000052962-i01.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i01.jpg
case_images: FIG1
case_images: Computed tomography of the kidney, ureter, and bladder (Figures 1-4) revealed a large multilobulated soft tissue density mass measuring 5x9x2.1 cm (anterioposterior x transverse x craniocaudal) noted in the retroperitoneum completely encasing the aorta, bilateral renal veins, bifurcation of the aorta, and common iliac vessels suggestive of conglomerated lymph node mass causing mass effect on mid portions of both ureters leading to bilateral proximal moderate hydro-uretero-nephrosis.
case_images: Transverse section of computed tomography of kidney, ureter, bladder indicating bilateral hydronephrosis (Orange arrows).
case_images: cureus-0016-00000052962-i02.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i02.jpg
case_images: FIG2
case_images: Computed tomography of the kidney, ureter, and bladder (Figures 1-4) revealed a large multilobulated soft tissue density mass measuring 5x9x2.1 cm (anterioposterior x transverse x craniocaudal) noted in the retroperitoneum completely encasing the aorta, bilateral renal veins, bifurcation of the aorta, and common iliac vessels suggestive of conglomerated lymph node mass causing mass effect on mid portions of both ureters leading to bilateral proximal moderate hydro-uretero-nephrosis.
case_images: Sagittal section of computed tomography of kidney, ureters and bladder showing hypodense mass lesion circumferentially encasing the descending aorta (Orange arrows) and white arrow indicates the descending aorta.
case_images: cureus-0016-00000052962-i03.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i03.jpg
case_images: FIG3
case_images: Computed tomography of the kidney, ureter, and bladder (Figures 1-4) revealed a large multilobulated soft tissue density mass measuring 5x9x2.1 cm (anterioposterior x transverse x craniocaudal) noted in the retroperitoneum completely encasing the aorta, bilateral renal veins, bifurcation of the aorta, and common iliac vessels suggestive of conglomerated lymph node mass causing mass effect on mid portions of both ureters leading to bilateral proximal moderate hydro-uretero-nephrosis.
case_images: Coronal section of computed tomography of kidney, ureters and bladder indicating large hypodense mass (Orange arrow).
case_images: cureus-0016-00000052962-i04.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i04.jpg
case_images: FIG4
case_images: Computed tomography of the kidney, ureter, and bladder (Figures 1-4) revealed a large multilobulated soft tissue density mass measuring 5x9x2.1 cm (anterioposterior x transverse x craniocaudal) noted in the retroperitoneum completely encasing the aorta, bilateral renal veins, bifurcation of the aorta, and common iliac vessels suggestive of conglomerated lymph node mass causing mass effect on mid portions of both ureters leading to bilateral proximal moderate hydro-uretero-nephrosis.
case_images: Histological staining using hematoxylin and eosin of the lymph node biopsy specimen illustrating prostate adenocarcinoma.
case_images: cureus-0016-00000052962-i05.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i05.jpg
case_images: FIG5
case_images: Immunohistochemistry analysis of the lymph node biopsy specimen demonstrating positive expression of NKX3.1 in prostate carcinoma.
case_images: cureus-0016-00000052962-i06.jpg
case_images: PMC10894314_01_cureus-0016-00000052962-i06.jpg
case_images: FIG6