[Diverticulopexy for the treatment of Zenker's diverticulum].

Zenker's diverticulum is a pseudodiverticulum through a muscular defect in the posterior pharyngeal wall at the area between the inferior pharyngeal constrictor muscles of the pharynx and the cricopharyngeus muscle. Although endoscopic techniques have made significant progress, the surgical treatment remains the gold standard. There are two main techniques: diverticulectomy (resection of the diverticulum) and diverticulopexy.

Telescopic straight ileo-anal anastomosis in dogs.

Purpose: To study outcomes and functional results of a telescopic straight ileo-anal anastomosis.

Methods: Thirty-six mongrel dogs were submitted to total proctocolectomy and telescopic straight ileo-anal anastomosis (ileal mucosa-submucosa pulled-through the rectal cuff). They were divided in 3 groups, sacrificed after one, two or eight weeks after the initial procedure.

Inguinal hernia orifice for specimen extraction after laparoscopic resections.

Specimen extraction is an unavoidable step in all laparoscopic resections. To this day there is no standardized retrieval incision for each procedure and the choice is made individually, yet based on the surgeon's experience and preference. Additionally, worldwide prevalence of inguinal hernia is high and many patients with this condition require surgical intervention for a distinct reason.

Simultaneous left colectomy and standard hepatectomy reformed by laparoscopy.

Laparoscopic approaches have been increasingly used in patients with colorectal or liver cancer. Simultaneous colectomy and hepatectomy are considered safe techniques and present similar oncological results regardless of the location of the primary tumor when there are fewer than four liver metastases, since there is no increase in morbidity or decrease in survival. The development of laparoscopic techniques and materials has made the combined resection of the colon and liver a very attractive option.

Giant cystic malignant pheochromocytoma invading right hepatic lobe: report on two cases.

Context: Cystic pheochromocytomas are uncommon neuroendocrine tumors that originate from the adrenal medulla. Differing from the more frequent solid pheochromocytomas, which produce catecholamines and present adrenergic syndrome, cystic pheochromocytomas may not produce these. Their symptoms are generally associated with an abdominal mass or even pain, particularly if the mass attains large dimensions.

[Pelvic exenteration for T4 rectal cancer: a series of 15 ressectable cases].

Background: Pelvic exenteration is the best therapeutic choice for treatment of T4 rectal cancer. Although, this operation still presents considerable mortality and high morbidity.

Aim: To report on a series of 15 patients with a T4 rectal cancer at a general hospital and describe the outcomes (morbidity, mortality and long-term survival) following pelvic exenteration.

Benign obstruction of the common hepatic duct (Mirizzi syndrome): diagnosis and operative management.

Background: Mirizzi syndrome is a rare complication of prolonged cholelithiasis, characterized by narrowing of the common hepatic duct due to mechanical compression and/or inflammation due to biliary calculus impacted in the infundibula of the gallbladder or in the cystic duct.

Objectives: To describe a series of eight consecutive patients with Mirizzi syndrome, at a single institution, submitted to surgical treatment and to comment on their aspects with emphasis on the diagnosis and treatment.

Methods: Four women and four men, with a mean age of 61.