A trend towards lower LND was observed over time for RCC patients who underwent RN or NSS. LND is more frequently performed in younger patients, locally advanced diseases and in case of open surgery.

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Background: Circulating tumor DNA (ctDNA) is an emerging resource for the diagnosis and prognosis of various types of cancer. However, characteristics and clinical utility of ctDNA is still largely unknown, especially in patients with genitourinary (GU) cancers.

Renal cell carcinoma (RCC) comprises a heterogenous group of tumors. Traditionally, papillary RCC (pRCC) is associated with a favorable outcome compared to clear cell RCC (ccRCC), while other series report equivalent or worse prognosis. In this paper we comparatively evaluate outcome of pRCC versus ccRCC in two large multi-institutional databases (cohort study), including distribution of pRCC subtypes 1 and 2. Retrospective data of 1,943 surgically treated pRCC patients from 17 European/ North American centers between 1984-2015 were compared to 5,600 ccRCC patients from a database comprising 11 European/ North American centers . Median follow-up was 64.6 months. Differences between pRCC, subtypes, and ccRCC were compared with t-tests, Chi^2-tests, and exact Fisher tests. Cancer-specific mortality was analyzed with cumulative incidence curves and Cox cause-specific hazard models. The robustness of our results was examined with sensitivity analyses. We present that cancer-specific mortality rates and variables as stage, lymph node, and distant metastasis differ significantly between groups. Furthermore, we demonstrate that patients with non-metastatic pRCC had a significantly better cancer-specific mortality (HR 0.76, p = 0.007), when compared to ccRCC. Additionally, pRCC type 2 versus ccRCC exhibited no difference in cancer-specific mortality (HR 0.9, p = 0.722), whereas pRCC type 1 versus ccRCC displayed a risk of death reduced by 69% (p = 0.044). Taken together, outcome of pRCC versus ccRCC varies significantly in non-metastatic PLOS ONE | https://doi.org/10.1371/journal.pone

Human actinomycosis is an infrequent chronic infection caused by gram-positive anaerobic bacteria with predominantly cervicofacial and intestinal manifestation. Retroperitoneal abscess formation displays a very rare localisation and is mostly incidentally diagnosed by histological examination. We report on a 44-year-old woman with left-sided flank pain and retroperitoneal abscess formation diagnosed by CT scan. Case history revealed preceding nephroureterectomy of the left kidney due to loss of kidney function and recurrent ureteral-vaginal fistulas. After CT scan-guided puncture and negative bacterial culture, actinomycosis could only be diagnosed by histopathological examination. Subsequently, besides abscess drainage calculated antibiotic therapeutic regimen was initiated. During the follow-up of 9 months there was no local or systemic recurrence. In the present case report, aetiology, clinical symptoms as well as diagnostic and therapeutic consequences are discussed.