[Robot assisted Frykman-Goldberg procedure. Case report].

Background: Rectal prolapse is defined as the protrusion of the rectal wall through the anal canal; with a prevalence of less than 0.5%. The most frequent symptoms include pain, incomplete defecation sensation with blood and mucus, fecal incontinence and/or constipation.

[Initial experience in robot-assisted colorectal surgery in Mexico].

Background: Colorectal surgery has advanced notably since the introduction of the mechanical suture and the minimally invasive approach. Robotic surgery began in order to satisfy the needs of the patient-doctor relationship, and migrated to the area of colorectal surgery. An initial report is presented on the experience of managing colorectal disease using robot-assisted surgery, as well as an analysis of the current role of this platform.

[Elective laparoscopic right colectomy for caecal volvulus: case report and literature review].

Background: Caecal volvulus is an uncommon cause of intestinal obstruction. Its clinical presentation is non-specific, with the diagnosis usually confirmed by barium enema and abdominal computed tomography. Treatment depends on many factors, and minimally invasive approaches are becoming the treatment of choice.

[Biofeedback effectiveness in patients with fecal incontinence].

Background: Fecal incontinence is defined as an involuntary bowel movement through the anal canal in inadequate time and place. There are different types of therapies for the management of fecal incontinence, being biofeedback therapy one of the most effective techniques. The aim of this study was to evaluate the necessary number of sessions of biofeedback electromyographyc therapy to achieve the maximum sphincteric complex contraction.

Appendiceal diverticulum associated with chronic appendicitis.

Introduction: Appendiceal diverticulosis is a rare entity, with a global incidence between 0.004% and 2.1% of all appendectomies.

[Pseudomyxoma peritonei. Two-case-report].

Background: Pseudomyxoma peritonei is a disease characterized by an intraperitoneal adenomucinous tumor cell disemination, being cecal appendix the most common etiology.

Objective: To report a surgeon's group experience and a detailed up to date literature review.

Clinical Cases: 1.

Colonic tuberculosis in an immunocompetent patient.

Introduction: One-third of the world's population is infected with tuberculosis (TB), with intestinal TB representing the sixth most common presentation of extrapulmonary TB. The diagnosis of intestinal TB is a challenge for physicians due to its diverse clinical manifestations that mimic other infectious, autoimmune, and neoplastic disorders, and is thus rarely considered as the causative agent of disease.

Presentation Of Case: We present a 55-year-old male with no relevant familial history, who presented due to a loss of 10kg of weight in 2 months accompanied by nocturnal diaphoresis and continuous abdominal distension.

[Differences between Chicago and traditional classifications in the diagnosis of esophageal motor disorders with high-resolution manometry and topography of esophageal pressure].

Background: With the introduction of high resolution manometry (HRM) and esophageal topography a novel classification (Chicago Classification) has been proposed for the diagnosis of esophageal motor disorders (EMD). Clinical differences with the traditional classification are currently under evaluation.

Aim: To investigate differences between the Chicago (CC) and traditional (TC) classifications in the diagnosis of EMD.

[Traumatic diaphragmatic injury diagnosed preoperatively. A Case report].

Traumatic diaphragmatic rupture represents a diagnostic challenge to any physician dealing with polytraumatized patients. This uncommon injury must be suspected in certain types of accidents, making knowledge of trauma mechanisms vital for its diagnosis. In this paper we present a case of traumatic diaphragmatic rupture with intrathoracic herniation of abdominal contents, which was surgically repaired.

[Anterior rectal duplication in adult patient: a case report].

Objective: To report a case of rectal duplication in the adult and make a literature review.

Background: The intestinal duplications are injuries of congenital origin that can exist from the base of the tongue to the anal verge, being the most frequent site at level of terminal ileum (22%) and at the rectal level in 5% To date approximately exist 80 reports in world-wide Literature generally in the pediatric population being little frequent in the adult age. Its presentation could be tubular or cystic.

[Anal malignant melanoma. Case report and literature review].

Objective: To present two cases of anorectal malignant melanoma as due to its non specific presentation and rarity they are often misdiagnosed like hemorrhoids.

Background: Anal melanomas are rare tumors that constitute less than 1% of the malignant colorectal tumors and represent both a diagnostic and therapeutic challenge to physicians. They are generally pigmented but could be amelanotic in 29% of the cases and they are associated with poor prognosis, regardless of the surgical procedure used.

[Colon transverse volvulus; a case report].

Background: Colon transverse volvulus is an uncommon pathology which is associate with alterations of the colonic motility, mental disorders and congenital anomalies of the fixation of the colon sistem. Up to 1994, 72 cases has been reported in world-wide literature.

Aim: To report a case of colon transverse volvulus and the treatment.

[Acute appendicitis without Crohn's disease in a patient with inflammatory bowel disease. Case report].

Background: Crohn's disease was described for the first time in 1932. The association of acute appendicitis with this disease is very rare and when the cecum is involved, risk of fistula is very high.

Case Report: We present the case of a 48-year-old female who had been diagnosed with Crohn's disease several months earlier.

[Double stapler technique in colorectal surgery].

Background: Colorectal surgery has evolved significantly during the last 35 years. The circular stapler and the double stapler techniques have favored the development of very low rectal anastomoses with reduction in anastomotic leakage. The objective of this study is to evaluate the functional results and complication rate of this surgical technique in the Department of Colorectal Surgery at the Hospital de Especialidades, Centro Medico Nacional Siglo XXI and at the Hospital Angeles del Pedregal, both located in Mexico City.

[Quality of life after restorative proctocolectomy with ileo-anal J pouch in patients with ulcerative colitis].

Background: Restorative proctocolectomy with ileal pouch-anal anastomosis has become the most common treatment in patients with ulcerative colitis. This procedure removes the entire colon, conserving the sphincteric complex and, therefore, preserving continence. The most important goal of this surgery is to improve quality of life.

[Anorectal tuberculosis. Case report].

Objective: To report for the first time in Mexico a case of anorectal tuberculosis as well as the revision of world-wide literature.

Background: In recent years the tuberculosis has had a significant increase, caused mainly by the epidemic of acquired immunodeficiency syndrome. The anorectal tuberculosis is a very rare presentation, their diagnosis requires a high index of suspicion since it can be confused with an infectious disease.

Colonic perforation as a complication of ventriculoperitoneal shunt: a case report.

Late perforation after ventriculoperitoneal (VP) shunting is extremely rare. Colonic perforation is uncommon and represents 0.1%-0.

[Hereditary mixed polyposis syndrome. First report in Mexico].

Objective: Report for first time in Mexico a case of hereditary mixed polyposis and review the literature.

Background: The hereditary mixed polyposis syndrome (HMPS) is an uncommon condition, distinguished by presence of a different histological pattern of polyps in digestive tract, clinically manifested by diarrhea, anemia and weight loss.

Case Report: Male patient, 38 years old, with familiar antecedent (dead sister) with polyps and gastric cancer.