NEDE: an open-source scripting suite for developing experiments in 3D virtual environments.

Background: As neuroscientists endeavor to understand the brain's response to ecologically valid scenarios, many are leaving behind hyper-controlled paradigms in favor of more realistic ones. This movement has made the use of 3D rendering software an increasingly compelling option. However, mastering such software and scripting rigorous experiments requires a daunting amount of time and effort.

Sarcomatoid carcinoma after radiation treatment of prostatic adenocarcinoma.

We report 2 patients with conventional prostatic adenocarcinoma who developed sarcomatoid carcinoma of probable prostatic origin 6 and 2.5 years after radiation treatment (seed implantation and external beam). Our cases had histologic features consistent with those cases previously reported in the literature.

The nested variant of urothelial carcinoma: clinicopathology of 2 cases.

The nested variant of urothelial carcinoma is a recently described bladder tumor entity with a rare incidence. Two cases of this disease are presented in this report; the patients in both cases were elderly men, with a predominant involvement of the trigone region. Histologically, the tumor cells were arranged in ill-defined nests and had low-grade nuclear features.

Adenocarcinoma of the urachus masquerading as a right lower quadrant mass: a case report.

We report a patient who presented initially with a right lower quadrant mass which was attached to the anterior abdominal wall. The final pathological diagnosis was adenocarcinoma of the urachus, an exceedingly rare bladder tumor.