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The Korean Journal of Pathology 1992;26(3): 314-316.
Multilocular Cystic Renal Cell Carcinoma: A case report.
Ki Jung Yun, Weon Cheol Han, Chan Choi, Hyung Bae Moon, Joung Sik Rim
1Department of Pathology, Wonkwang University Medical School, Iiri, Korea.
2Department of Urology, Wonkwang University Medical School, Iiri, Korea.
Multilocular cystic renal cell carcinoma appears to be a distinct and rare subtype of renal cell carcinoma with characteristic gross and microscopic features. Multilocular cystic renal cell carcinoma should be separated from multilocular cyst, multilocular cystic nephroma, and renal cell carcinoma with cystic degeneration. We present a case of multilocular cystic renal cell carcinoma. A 61-year-old man presented with right flank pain for 4 years. The computerized tomography revealed multilocular cystic mass in the upper pole of right kidney. The cystic mass measured 4.5x4 cm. The cyst was multilocular and locules not communicated with each other. The solid area was not present. Microscopically, the locules were lined by flat or cuboidal neoplastic clear cells. The clear cells were focally aggregated in the septa. The nephron was not present in the septa.
Key Words: Multilocular cystic renal cell carcinoma; Multilocular cystic nephroma; Renal cell carcinoma; Kidney