A rare case of urachal carcinoma with multiple lung metastasis that required differentiation from primary lung carcinoma.

Urachal carcinoma is a rare malignancy of all bladder carcinomas. Metastatic lung tumours showing multiple nodules are rare without a local recurrence. We describe a case of multiple metastatic lung cancer from urachal carcinoma that required differentiation from primary lung cancer.

Prediction of postoperative renal function by preoperative serum creatinine level and three-dimensional diagnostic image reconstruction in patients with renal cell carcinoma.

Objectives: To investigate retrospectively whether postoperative renal function in patients with renal cell carcinoma can be preoperatively predicted by a combination of the preoperative serum creatinine (sCr) and the renal parenchymal volume (RPV) estimated by three-dimensional image reconstruction of the preoperative diagnostic imaging.

Methods: Of 155 patients who had undergone radical nephrectomy, 76 were eligible for inclusion in our study (group 1). Group 2 was comprised of 26 of 37 patients who had undergone partial nephrectomy.

Non-ischemic nephron-sparing surgery for small renal cell carcinoma: complete tumor enucleation using a microwave tissue coagulator.

Objective: To determine the methodological usefulness of non-ischemic complete enucleation for small renal cell carcinomas (RCC) using a microwave tissue coagulator (MTC).

Methods: Fifty-nine patients (61 kidneys) underwent non-ischemic complete tumor enucleation by MTC. Of the 59 patients, 46 had an elective indication and 15 kidneys of 13 patients had an imperative indication.