Intraoperative US-guided large volume ethanol injection for hepatocellular carcinoma greater than 4 cm.

Background: Percutaneous ethanol injection has been successfully used for hepatocellular carcinomas (HCC) smaller than 5 cm in size. For larger lesions large volume ethanol injection has not been well explored.

Aim: Evaluate the results of intraoperative Ultrasonographic-guided large volume ethanol injection for HCC larger than 4 cm in size.

Hepatocellular carcinoma in the youth. A comparative analysis with hepatocellular carcinoma in adulthood.

Background/aims: Hepatocellular carcinoma (HCC) is a very rare disease among young individuals. Epidemiological, clinical and histopathological features of this malignancy in the youth have not been thoroughly studied.

Methodology: A review of the clinical files of patients with HCC younger than 40 years of age, who were treated between May 1990 and July 2002, was performed.

[Laparoscopic liver surgery].

Introduction: Laparoscopic surgery has been widely used for digestive tract diseases, specially for gallbladder pathology. Laparoscopic liver surgery pretends to accomplish the same objectives of open surgery but with the advantages of minimally invasive surgery.

Aims: To evaluate the indications and recent results of laparoscopic liver surgery, as well as the technique.

[Neuroendocrine gastric carcinoma. A case report and review of current management].

Neuroendocrine or carcinoid tumors of the gastrointestinal tract considered previously extremely rare, are diagnosed at present with increased frequency due to the better capacity to identify neuroendocrine system cells in normal and pathologic conditions. Occasionally, these tumors secrete a great variety of vasoactive substances, producing the carcinoid syndrome. Gastric carcinoids are classified, according to their degree of differentiation into well differentiated and poorly differentiated tumors, also called neuroendocrine carcinomas.

[Cavernous hemangioma of the liver and hepatic hemangiomatosis. Indications and results of the surgical resection].

Introduction: Cavernous hemangioma is the most frequent focal liver lesion. It affects mainly women and may cause symptoms such as abdominal pain, mass, and early satiety, or complications such as heart failure or coagulopathy. There are several options for treatment in symptomatic patients.

A retrospective analysis of patients with gallbladder cancer treated with radical resection versus cholecystectomy plus external radiotherapy.

Background/aims: To compare patients with gallbladder cancer treated with radical resection and regional lymphadenectomy (RR-RL) versus simple cholecystectomy and adjuvant external radiotherapy (SC-ERT) and determine outcome.

Methodology: Presentation, operative data, complications and survival were examined in 137 patients. In particular, the 45 patients treated with RR-RL or SC-ERT.

[Epidemiologic factors and results of treatment in peripheral and peri-hilar cholangiocarcinoma].

Objective: Cholangiocarcinoma is a rare malignant tumor that may occur anywhere along intra or extrahepatic biliary tree. Prognosis remains poor with overall 5-year survival rate of 5%. Experience in management of this lesion in Mexico is scarce.

Resection of liver metastases from a virilizing steroid (lipoid) cell ovarian tumor.

The authors report the case of a 34-year-old woman who presented liver metastases from a virilizing lipoid cell ovarian tumor. The patient complained of right upper quadrant abdominal pain, strong virilization and secondary amenorrhea. She developed hirsutism and irregular menses at the age of 23, and a salpingo-ooforectomy for a right ovarian lipoid cell tumor was performed.