A case of small simple renal cyst associated with renal cell carcinoma
Utsunomiya, M.; Takatera, H.; Itoh, H.; Itatani, H.
Hinyokika Kiyo. Acta Urologica Japonica 34(6): 1023-1026
1988
ISSN/ISBN: 0018-1994 PMID: 3066208 Document Number: 314906
A 61-year-old male was admitted to our clinic for the purpose of further examination of the small renal mass discovered incidentally by ultrasonography. Substraction angiography disclosed a small renal cell carcinoma of the upper-lateral margin of the left kidney dramatically. Enucleative surgery of the tumor was performed successfully (about 2 cm in diameter). Histological examination revealed a small simple renal cyst associated with renal cell carcinoma. The patient is well without evident metastasis 1 year postoperatively. Since this is a very rare case in the literature, we report this case and discuss the preoperative diagnosis of small renal cell carcinoma. We believe that ultrasonography is a simple and very useful method for mass screening of small urological malignancies.