Tailored-surgery for locally advanced colon cancer based on 3D mathematical reconstruction surgical planner: Observational comparative non-randomized study.

Background: This study investigates the effectiveness of a three-dimensional reconstruction mathematical model (3D-IPR) for preoperative planning in locally advanced colon cancer (LACC) with threatened surgical margins. The objective was to evaluate the utility of a 3D-IPR surgical planner tool in cases of LACC with threatened surgical margins. Additionally, the study aims to compare the diagnostic accuracy of the 3D-IPR model against conventional CT scans in determining the infiltration of neighboring structures.

Recurrent hemobilia secondary to extrahepatic biliary tract cholangiocarcinoma. A diagnostic challenge.

The etiology of hemobilia has mainly iatrogenic (>50%), followed by traumatic causes. Others are biliopathy due to portal high pressure, or neoplastic or infective biliopathy. In the case of non-clear hemobilia, direct-vision-cholangioscopy can change the management in >34% of cases.

Mesalazine-induced esophageal ulcers. A rare adverse effect.

31-year-old woman. Diagnosis of ulcerative proctitis in February/2022. Calprotectin 1832 μg/g.

Anal intraepithelial neoplasia screening in patients with human immunodeficiency virus infection.

Introduction: the incidence of anal cancer has increased in recent years, making screening and early detection of anal intraepithelial neoplasia (AIN) a necessity in patients at risk.

Methods: a descriptive observational study of homosexual patients (MSM) or women with cervical intraepithelial neoplasia (CIN) III, with human immunodeficiency virus (HIV) infection, included in an AIN detection screening program was carried out between March 2016 and September 2019.

Results: we have performed 695 anal smears, 156 with results of LSIL (low-grade lesion) or HSIL (high-grade lesion) (22.