Asymptomatic gallstones and duration of cyclosporine use in kidney transplant recipients.

Background: Cyclosporine (CsA) use has been associated to the development of cholelithiasis in transplant recipients. We herein explored the role of time under CsA on this association in asymptomatic adult kidney transplant recipients (KTR).

Methods: A cross-sectional study was conducted in 140 KTR with variable post-transplant follow-up (PTFU), and without history of symptomatic biliary disease.

[Duodenal pseudomelanosis].

Pseudomelanosis duodeni is a rare entity characterized by dark pigmentation of duodenal mucosa of uncertain etiology and clinical significance. We report a case with endoscopic and pathologic correlation. Some aspects about etiology, clinical and histopathologic characteristics are discussed.

[Ogilvie syndrome or acute colonic pseudo-obstruction. Current concepts in diagnosis and treatment].

Ogilvie's syndrome or acute colonic pseudo-obstruction is a motility disorder characterized by acute and progressive colonic distension. This syndrome occurs in hospitalized patients with several medical or surgical diseases with an unclear pathophysiology. Diagnosis is established by the clinical history, physical examination and radiological findings on plain abdominal X-ray.