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. 2018 Dec 19;45(Supp. 1):S131-S134.
doi: 10.5152/tud.2018.44342. Print 2019 Nov.

Aggressive Co-Existence: Collecting Duct and Clear Cell Carcinoma in the Same Kidney

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Free PMC article

Aggressive Co-Existence: Collecting Duct and Clear Cell Carcinoma in the Same Kidney

Abdullah Hızır Yavuzsan et al. Turk J Urol. .
Free PMC article

Abstract

As in every organ, synchronous multiple cancers are rarely encountered in kidneys. In the literature, mostly co-existence of renal cell carcinoma and transitional cell carcinoma was reported. In the literature, the co-existence of collecting duct carcinoma and clear cell carcinoma was described only for a few cases with different patterns. With these two cases, we aimed to present a very rare entity with synchronous existence of clear cell renal cell carcinoma and collecting duct carcinoma in the same kidneys.

Conflict of interest statement

Conflict of Interest: The authors have no conflicts of interest to declare.

Figures

Figure 1. a–c
Figure 1. a–c
(a) Nephrogram phase of axial abdominal CT. Heterogenously enhanced right kidney mass is shown. Meanwhile it can be seen that there is no contrast material in the calyceal system of the right kidney but it can be observed in left. (b) Contrast- enhanced coronal CT reveals a mass lesion that grows toward hepatorenal recess and indentation of collecting system without any sign of invasion. (c) Contrast- enhanced coronal CT, the lumen of right proximal ureter is distended with soft tissue density which indicates TCC CT: computed tomography; TCC: transitional cell carcinoma
Figure 2. a–d
Figure 2. a–d
(a) T2-weighted axial MR image. Arrow depicts central hyperintense, peripheral isointense renal mass in the interpolar cortical region of right kidney. (b) T1-weighted fat- saturated axial MR image of same lesion with isointense signal. (c) Postcontrast T1-weighted fat-saturated axial MR image demonstrates contrast uptake of the peripheral sides of the lesion, central parts do not show contrast enhancement (cystic changes). (d) Postcontrast T1-weighted coronal MR image portrays lesion that extends from medullary region to cortical region of the right kidney
Figure 3. a–d
Figure 3. a–d
(a) Synchronous existence of the clear cell renal cell carcinoma with tubulocystic pattern (right) and collecting duct carcinoma mostly involving lymphatic vessels (left). Magnification: ×200 (b) Synchronous existence of the clear cell renal cell carcinoma with intralymphatic collecting duct carcinoma. Magnification: ×200. (c) Collecting duct carcinoma invaded widely the renal sinus adipose tissue. Magnification: ×100. (d) Clear cell renal cell carcinoma component. Magnification: ×100 Black arrows: Clear Cell Renal Cell Carcinoma White arrows: Collecting Ductal Carcinoma was observed in lymphatics in the form of papillae
Figure 4. a–d
Figure 4. a–d
(a) CDC in lymph vessels at the top, ccRCC at the bottom. Magnification: ×400 (b) CDC in lymph vessels and kidney parenchyma. Magnification: ×400 (c) CDC in the lymph vessels and kidney parenchyma. Magnification: ×100 (d) ccRCC at large magnification. Magnification: ×100 Black arrows: Clear Cell Renal Cell Carcinoma White arrows: Papillary collecting duct carcinoma was observed in lymphatics in the form of.

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