title: [A case of small simple renal cyst associated with renal cell carcinoma].
abstract: 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. Subtraction angiography disclosed a small renal cell carcinoma of the upper-lateral margin of the left kidney dramatically. Enucleating 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.
authors.affiliation: Department of Urology, Sumitome Hospital.
authors.forename: M
authors.initials: M
authors.lastname: Utsunomiya
authors.forename: H
authors.initials: H
authors.lastname: Takatera
authors.forename: H
authors.initials: H
authors.lastname: Itoh
authors.forename: H
authors.initials: H
authors.lastname: Itatani
mesh_terms: D002292:Carcinoma, Renal Cell / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000150:complications*; D007680:Kidney Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography