30 April 2026
: Case report 
Clear Cell Renal Cell Carcinoma in a 60-Year-Old Man Arising From Congenital Left-Sided Ectopic Right Kidney (Crossed Fused Renal Ectopia) With Invasion Into the Contralateral Kidney
Challenging differential diagnosis, Unusual or unexpected effect of treatment, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology
Shakhawan Hama Amin Said ABG 1,2*, Mzhda Sahib Jafaar AB 1, Goran M. Raouf Abdulqader ABD 3, Zana Ezzat Hama Karim AB 4, Kewan Hussein Shekh Faraj
ABCDEF 4, Ali Mzhda Mohammed Ali ADEF 5, Aland Salih Abdullah ADEF 1, Diyam Dlshad Hassan DEF 1, Ahang Mohammed Abdulrahman DEF 4
DOI: 10.12659/AJCR.952016
Am J Case Rep 2026; 27:e952016
Figure 7 Gross pathology of the resected kidney and tumorGross specimen after right radical nephrectomy shows a large renal mass (red arrow) replacing most of the ectopic kidney. The fused segment of the left kidney is visible (white arrow), demonstrating the anatomic fusion characteristic of crossed fused renal ectopia.