case_images: PMC9976715_01
case_images: Non-contrast computed tomography scan showing mass lesion along with right ureter and inferior vena cava
case_images: cureus-0015-00000034388-i01.jpg
case_images: PMC9976715_01_cureus-0015-00000034388-i01.jpg
case_images: FIG1
case_images: A non-contrast computed tomography (NCCT) scan was done (Figure 1).
case_images: Doppler ultrasound of the patient. (A) Ultrasound of abdomen showing hydronephrosis. (B) Color Doppler image showing ureter along with mass lesion. (C) Color Doppler image showing the upper one-third of ureter and mass with inferior vena cava. (D) Color Doppler image showing the mass compressing and infiltrating the lumen of the inferior vena cava.
case_images: cureus-0015-00000034388-i02.jpg
case_images: PMC9976715_01_cureus-0015-00000034388-i02.jpg
case_images: FIG2
case_images: On Doppler ultrasound, a ureteral mass was seen compressing and infiltrating the inferior vena cava when performing a biopsy (Figures 2A-2D).
case_images: Ultrasonography-guided biopsy of mass lesion
case_images: cureus-0015-00000034388-i03.jpg
case_images: PMC9976715_01_cureus-0015-00000034388-i03.jpg
case_images: FIG3
case_images: Biopsy was taken with precision (Figure 3). The patient also underwent an ultrasonography-guided biopsy of a ureteric and inferior vena cava mass-like lesion, which was further sent for histopathology (Figure 3).
case_images: Low- and high-power scanner images. (A) Low-power scanner image showing a core biopsy in which dense mononuclear inflammatory infiltrate can be appreciated (100x). (B) Higher magnification image showing a well-formed granuloma with numerous foamy histiocytes and macrophages representing a chronic inflammatory process (400x).
case_images: cureus-0015-00000034388-i04.jpg
case_images: PMC9976715_01_cureus-0015-00000034388-i04.jpg
case_images: FIG4
case_images: No evidence of increased or atypical mitosis, caseous necrosis, epitheloid granuloma, or malignancy was seen in the section and thus was suggestive of a xanthogranulomatous inflammation (Figures 4A, 4B and Figures 5A, 5B).
case_images: Higher magnification (400x) images showing scattered characteristic multinucleated Touton giant cells (A) and focal deposition of hemosiderin pigment (B).
case_images: cureus-0015-00000034388-i05.jpg
case_images: PMC9976715_01_cureus-0015-00000034388-i05.jpg
case_images: FIG5
case_images: No evidence of increased or atypical mitosis, caseous necrosis, epitheloid granuloma, or malignancy was seen in the section and thus was suggestive of a xanthogranulomatous inflammation (Figures 4A, 4B and Figures 5A, 5B).