Pancreas hydatic cyst: a case report

Echinococcal involvement of the pancreas is extremely rare. The clinical presentation is polymorph and the diagnosis is rarely evocated before surgery. We report a 60-year-old woman presenting with epigastric pain. Abdominal examination found an epigastric mass. Radiologie explorations [Abdominal ultrasound and a computed tomography scan] revealed a pancreatic cyst located in the corpus and in the tail. The diagnosis of hydatid cyst was made at laparotomy. The cyst was treated by aspiration and injection of hypertonic saline solution followed by cystectomy. Three years later, the patient was asymptomatic without recurrence of hydatic cysts. Epidemiological, clinical, biological and radiological data should allow better detection of hydatid cysts of pancreas. Surgical treatment depends on the location of the cyst in the pancreas

[Rectal carcinoid tumor - a case report]

Rectal carcinoid tumor is uncommon. It represent 13 percent of gastrointestinal carcinoid tumors. We report the case of a 37-year-old woman presenting with rectal bleeding. Digital examination revealed a hard mass in the rectum, 7 cm from the anal verge. Laboratory investigation was normal. Rectoscopy demonstrated a polypoid mass, 10 mm in diameter in the rectum, 7 cm from anal verge. Endoscopic resection was performed. Histology of the polyp with immunohistochemestry led to a diagnosis of carcinoid tumor. Local remnant was found. No distant metastases were found. Additional transanal excision was necessary. Clinical characteristics, histologic aspects and treatment options of rectal carcinoid tumor will be reviewed

[New advances in the management of gastric marginal zone B cell lymphoma]

The stomach is the most common site involved in primary gastrointestinal lymphoma. Helicobacter pylon [HP] plays a decisive role in the pathogenesis of gastric marginal zone B cell lymphoma of mucosa associated lymphoid tissue. Eradication therapy has become widely accepted as initial treatment of localized low grade MALT lymphoma. Further studies are needed to determine the most adapted treatment in non-responding patients. A long-term endoscopic follow-up is recommended due to the increased risk of gastric adenocarcinoma in spite of Helicobacter pylon eradication

[Pathogenesis of intestinal amebiasis]

Amebiasis is the infection of the human gastrointestinal tract by Entamoeba histolytica, a protozoan parasite that is capable of invading the intestinal mucosa and spread to other organs mainly the liver. Identification of proteins associated with virulence, including a lectin that mediates adherence to epithelial cells, a pore-forming peptide that lyses host cells and secreted proteases that degrade host tissues, is one of major recent accomplishment in the field of amebiasis research. This review focuses mainly on the parasitic mechanisms that may be related to invasive intestinal amebiasis