Introduction Complete ureteral avulsion is one of the most serious complications of ureteroscopy. The aim of this report was to look for a good solution to full-length complete ureteral avulsion.Case presentation A 40-year-old man underwent ureteroscopic management. Full-length complete avulsion of ureter occurred during ureteroscopy. Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis were performed 6 hours after ureteral avulsion. The patient was followed-up during 34 months. Double-J tube was removed at 3 months after operation. Twenty three months after the first operation, the patient developed hydronephrosis because of a new ureter upside stone, then rigid ureteroscopy and holmium laser lithotripsy were used successfully.Conclusion Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis may be a good choice for full-length complete ureteral avulsion.

Abstract:Although the incidence is extremely rare in clinical practice, due to its highly aggressive behavior and a similar presentation as prostate cancer, the primary malignant melanoma of the prostate should be given more attention. We report a case in a 29-year-old male who presented with one-month history of dysuria. Based on clinical examination, ultrasound and computed tomography imaging, surgical operation and histopathological studies, a definitive diagnosis was made. Further characteristic images and pathology of this disease are discussed.

Abstract. Metanephric adenoma (MA) of the kidney is a rare and frequently benign tumor with a favorable prognosis that is often diagnosed following surgical treatment. In the present study, a 54-year-old female patient presented with complaints of intermittent right-flank pain and anterior abdominal pain occurring over 2 years and sporadic gross hematuria occurring over 3 months. Ultrasonography and computerized tomography imaging revealed a neoplasm lesion localized in the right kidney. Successful open approach radical nephrectomy was performed and post-surgical histopathological examination verified the lesion as a MA of the kidney. Radical nephrectomy, cryoablation or radiofrequency may used to treat MA and a selective panel of immunostains, including WT1, EMA and AMACR, may be useful for diagnosis. IntroductionMetanephric adenoma (MA) is a rare and frequently benign tumor that accounts for 0.2-0.7% of adult renal epithelial neoplasms (1,2). MA is observed predominantly in women, with a 2:1 female to male ratio (3). Currently, <200 cases have been reported in the literature, often through case reports. The clinical presentation of MA is similar to malignant renal masses; MA possesses two distinct renal lesions, which share several morphological and immunohistochemical features with solid variants of papillary renal cell carcinomas (2). Consequently, this may lead to potential misdiagnosis and inadequate treatment. The present study reports the case of a 54-year-old female that presented with MA associated with polycythemia. Case ReportA 54-year-old female patient presented to the Affiliated Hospital of Guizhou Medical University (Guiyang, China), with complaints of intermittent right flank pain and anterior abdominal pain that occurred over a 2-year period and sporadic gross hematuria that occurred over 3 months in March 2013. The patient had no other symptoms. Physical examination revealed no significant conclusions. Urinalysis revealed hematuria in the urine culture and a routine blood examination exhibited a hematocrit (Hct) volume of 61%, a hemoglobin volume of 174 g/l, and a red blood cell count of 6.2x10 12 cells/l. Ultrasonography and computerized tomography (CT) imaging revealed a neoplasm lesion localized in the right kidney. No lymphadenopathy was detected ( Fig. 1A and B). Following discussion with the patient and the patient's family, a traditional open surgical treatment was proposed. Subsequent to extensive discussion with urologists of the Affiliated Hospital of Guizhou Medical University an open approach radical nephrectomy was performed. Macroscopically, the tumor consisted of renal tissue measuring 8.0x6.0x5.0 cm in size, and was a well-circumscribed, soft, white-gray mass with a cut surface that was focally friable and accompanied by necrosis ( Fig. 1C and D).A hematoxylin and eosin staining kit (Nanjing Jiancheng Bioengineering Institute, Nanjing, China) was applied to the resected specimen. Microscopic examination (IMT-2; Olympus Corporation, Tokyo, Japan) revealed that the cellular mass ...