Primary adenocarcinoma of the renal pelvis: histologic features of a stepwise process from intestinal hyperplasia to dysplasia in a patient with chronic renal abscess.

Pure adenocarcinomas of the urothelium are very rare and their location in the pelvis is uncommon. Although their pathogenesis is not well defined, adenocarcinomas are likely to originate from neoplastic transformation of the glandular cells of the urothelial intestinal metaplasia usually arising in response to chronic irritating stimuli, such as long-duration inflammation, urolithiasis, and hydronephrosis. We report a case of an 81-year-old woman who underwent right nephrectomy for relapsing renal abscess due to a staghorn calculus.

Barbed unidirectional V-Loc 180 suture in laparoscopic Roux-en-Y gastric bypass: a study comparing unidirectional barbed monofilament and multifilament absorbable suture.

Background: This study aimed primarily to evaluate the safety of digestive running suture (in gastrojejunal and antecolic jejunojejunal anastomosis closure) using unidirectional absorbable barbed suture (V-Loc 180) in laparoscopic Roux-en-Y gastric bypass (LRYGB) and secondarily to assess the efficacy of V-Loc 180 in reducing operative time.

Methods: A prospective cohort study of 315 consecutive patients who underwent LRYGB was performed between October 2009 and October 2012 using an identical procedure technique. For the first 76 patients, a multifilament absorbable suture was used to assess the gastrojejunal anastomosis and the antecolic jejunal suture.

Complicated intra-abdominal infections in Europe: a comprehensive review of the CIAO study.

The CIAO Study ("Complicated Intra-Abdominal infection Observational" Study) is a multicenter investigation performed in 68 medical institutions throughout Europe over the course of a 6-month observational period (January-June 2012).Patients with either community-acquired or healthcare-associated complicated intra-abdominal infections (IAIs) were included in the study.2,152 patients with a mean age of 53.

Complicated intra-abdominal infections in Europe: preliminary data from the first three months of the CIAO Study.

The CIAO Study is a multicenter observational study currently underway in 66 European medical institutions over the course of a six-month study period (January-June 2012).This preliminary report overviews the findings of the first half of the study, which includes all data from the first three months of the six-month study period.Patients with either community-acquired or healthcare-associated complicated intra-abdominal infections (IAIs) were included in the study.

[Experimental teaching program on cooperation between "Sapienza" University of Rome and the University Hospital "Le Bon Samaritain" in N'Djamena, Chad].

Background: The shortage of essential surgical care in sub-Saharan Africa is a worldwide problem. Lack of healthcare workers, surgeons and very limited resources are the reason for this critical health crisis. Furthermore in Africa many physicians as soon as they get a degree emigrate in more attractive countries.

Mentored trainees obtain comparable operative results to experts in complex laparoscopic colorectal surgery.

Purpose: The aim of this study is to evaluate the impact of an expert monitoring on the quality and results of laparoscopic reversal of Hartmann's procedure (LRHP) performed by trainee surgeons by comparing their results to the expert's outcomes.

Methods: Forty-two LRHP were performed between 2000 and 2008 following a step-by-step, standardised, full laparoscopic procedure. Patients operated upon by a senior surgeon were compared to patients operated upon by trainee surgeons while being mentored by the senior surgeon.

Giant inframuscular lipoma disclosed 14 years after a blunt trauma: a case report.

Introduction: Lipoma is the most frequent benign tumor of the soft tissue. This lesion is often asymptomatic except in cases of enormous masses compressing nervous-vascular structures. Although the diagnosis is mostly clinical, imaging tools are useful to confirm the adipose nature of the lesion and to define its anatomic border.

Multiple giant diverticula of the foregut causing upper gastrointestinal obstruction.

Small bowel diverticulosis represents an uncommon disorder (except for Meckel diverticulum) often misdiagnosed since it causes non-specific gastrointestinal symptoms. Most of times the diagnosis is carried out in case of related complications, such as diverticulitis, hemorrhage, perforation or obstruction. Intestinal obstruction can be caused by inflammatory stenosis due to repeated episodes of diverticulitis, volvulus, intussusception or jejunal stones.

Gastrointestinal stromal tumor of the anal canal: an unusual presentation.

Background: Gastrointestinal stromal tumors (GIST) of the stomach are the most frequent followed by those of the intestinal tract, while colon and rectum represent rare sites. GIST of the anal canal are extremely rare. They have been studied along with GIST of the rectum, as a single entity, and along with them they represent 5% of GIST.