[Evaluation of non-enhanced spiral CT in the assessment of renal colic: prospective series of 81 patients].

Objective: For many years, intravenous urography has been the first-line investigation for renal colic. Since the middle of the 1990s, non-enhanced spiral CT has become a more efficient, less invasive and less expensive alternative to IVU. The aim of this study was to compare non-enhanced spiral CT and IVU in the assessment of renal colic and to evaluate the possibility of exclusive CT assessment in this disease.

[Benign retroperitoneal schwannoma: report of three cases].

Schwannoma is a tumour arising from Schwann cells. It has a variable presentation and its preoperative diagnosis is difficult. Retroperitoneal schwannoma is an exceptional site.