De novo kidney graft tumors: results from a multicentric retrospective national study.

De novo tumors in renal allografts are rare and their prevalence is underestimated. We therefore analyzed renal cell carcinomas arising in renal allografts through a retrospective French renal transplant cohort. We performed a retrospective, multicentric survey by sending questionnaires to all French kidney transplantation centers. All graft tumors diagnosed after transplantation were considered as de novo tumors. Thirty-two centers participated in this study. Seventy-nine tumors were identified among 41 806 recipients (Incidence 0.19%). Patients were 54 men and 25 women with a mean age of 47 years old at the time of diagnosis. Mean tumor size was 27.8 mm. Seventy-four (93.6%), 53 (67%) and 44 tumors (55.6%) were organ confined (T1-2), low grade (G1-2) and papillary carcinomas, respectively. Four patients died of renal cell carcinomas (5%). The mean time lapse between transplantation and RCC diagnosis was 131.7 months. Thirty-five patients underwent conservative surgery by partial nephrectomy (n = 35, 44.3%) or radiofrequency (n = 5; 6.3%). The estimated 5 years cancer specific survival rate was 94%. Most of these tumors were small and incidental. Most tumors were papillary carcinoma, low stage and low grade carcinomas. Conservative treatment has been preferred each time it was feasible in order to avoid a return to dialysis.

[Partial nephrectomy for cancer and percutaneous biopsy: Oncologic results]. / Néphrectomie partielle pour cancer et biopsie percutanée : résultats oncologiques.

OBJECTIVES: To evaluate the results of partial nephrectomy (NP) for cancer in 60 patients selected by the biopsy of the tumor by analyzing the information, oncologic follow-up. PATIENTS: It was a cohort study unicenter retrospective from 1994 to 2006. The biopsy was systematically done for patients who were candidates for elective NP. The criteria for elective indications NP tumors were less than 4cm, low grade Fuhrman (I and II). The tubulopapillary tumors (TBP) on biopsy were excluded from the elective indications. The parameters studied were the biopsy data, overall survival, disease-free survival. RESULTS: The median age was 59 years (32-79 years) and 69% of tumor were fortuitous discovery. Indications of need accounted for 30% of cases (single kidney, bilateral tumors and chronic renal failure [CRF]). Biopsy allowed a diagnosis in 89% of cases. There was one death in specific postoperative immediately. A final histology was 75% of clear cell carcinoma, 13.3% of chromophobe and 11.7% of TBP, 96.6% of T1a including 86.6% of low grade and no surgical margin. The median follow-up was 49 months with 98.5% of specific survival at 5 years, one local recurrence and no general recurrence. CONCLUSION: The study has shown that the selection of patients by biopsy gives satisfactory carcinologic results with 98.5% specific survival at the end of follow-up; it is between 89 and 100% in the literature.

[Local recurrence of renal carcinoma after laparoscopic partial nephrectomy]. / Récidive locale après néphrectomie partielle laparoscopique (NPL) pour cancer du rein.

We report the case of an early local recurrence after a laparoscopic partial nephrectomy (LPN) for a Furhman grade 1-2 clear cell renal carcinoma (CCRC). CT scan at 6 months revealed a local recurrence. An open total nephrectomy was performed. There were six nodules in the perirenal fat from a grade 3 CCRC. Twenty-six months after the LPN, the patient had a wound recurrence, which was surgically removed. Four months after the wound recurrence, the patient had pulmonary, liver and adrenal glands metastasis. He received an oral treatment with sunitinib. At 4 months after the initiation of the sunitinib, he had a total response.

[PSA and spironolactone]. / PSA et spironolactone.

The spironolactone is a diuretic of potassium savings. It is also used in the treatment of the hirsutism for its antiandrogenic action. Its use and its effects on the patients affected by a prostate cancer are less known. We report the case of a 72-year-old man having a cancer of prostate which normalized its PSA after institution of a treatment by spironolactone for ascites. This patient had a biological recurrence of a prostate cancer, arisen 7 years later after a treatment by hormonal radiotherapy. Nine months after the implementation of the treatment by spironolactone, there were no clinical and biological signs of disease progress.

[Functioning oxyphil cell adenoma of parathyroid diagnosed with ureteral stone]. / L'adénome fonctionnel d'une parathyroïde à cellule oxyphile associé à un calcul urétéral.

A case of oxyphil cell adenoma of parathyroid is presented. A 82-year-old woman complained of back pain. Left hydronephrosis, elevated serum calcium-parathyroid hormone and a nodule in the right neck suggested functioning parathyroid adenoma. Resected adenoma (15 mm x 10 mm x 5 mm) was exclusively composed of oxyphil cell. Production of parathyroid hormone by oxyphil cells was confirmed by immunohistochemistry. This case was found to be the smallest parathyroid oxyphil cell adenoma hitherto reported that caused urolithiasis.