case_images: PMC6605763_01
case_images: MR Urography revealed right-sided moderate to severe hydronephrosis and moderate hydroureter to mid ureter, secondary to an extrinsic paravertebral soft tissue mass (arrow) (measuring approximately 2x2.7x3.8 cm), encasing the ureter at the level of the right iliac vessels bifurcation.
case_images: IMCRJ-12-189-g0001.jpg
case_images: PMC6605763_01_IMCRJ-12-189-g0001.jpg
case_images: F0001
case_images: Magnetic Resonance Urography revealed right-sided moderate to severe hydronephrosis and moderate hydroureter to mid-ureter, secondary to an extrinsic paravertebral soft tissue mass (measuring approximately 2x2.7x3.8 cm), encasing the ureter at the level of the right iliac vessels bifurcation. (Figure 1) Color Doppler ultrasonography of the lower extremity veins was normal with no sign of DVT.
case_images: Invasive carcinoma with perivascular invasion. H&E, 100X.
case_images: IMCRJ-12-189-g0002.jpg
case_images: PMC6605763_01_IMCRJ-12-189-g0002.jpg
case_images: F0002
case_images: Nests of infiltrating carcinoma show squamoid differentiation. H&E, 100X.
case_images: IMCRJ-12-189-g0003.jpg
case_images: PMC6605763_01_IMCRJ-12-189-g0003.jpg
case_images: F0003
case_images: Nests of malignant squamous cells infiltrated the periglomerular as well as the interstitial spaces (Figure 3).
case_images: Neoplastic cells with small foci of keratin formation. H&E, 400X.
case_images: IMCRJ-12-189-g0004.jpg
case_images: PMC6605763_01_IMCRJ-12-189-g0004.jpg
case_images: F0004
case_images: There were some neoplastic cells with small foci of keratin formation (Figure 4).
case_images: Squamous nests with intercellular desmosomes and bridges. H&E, 400X.
case_images: IMCRJ-12-189-g0005.jpg
case_images: PMC6605763_01_IMCRJ-12-189-g0005.jpg
case_images: F0005
case_images: There were also some Squamous nests with obvious intercellular desmosomes and bridges, which were characteristic for SCC (Figure 5).