Genetic diversity of Echinococcus granulosus sensu stricto infecting humans in western Algeria.

Human cystic echinococcosis is a zoonosis due to the flat worm Echinococcus granulosus sensu lato. The disease remains a major public health problem in Northern Africa. Molecular typing enables a better understanding of the parasite circulation from animals to humans. In this study, we investigated the genotypic diversity of 46 Echinococcus granulosus isolates collected from humans in the western part of Algeria by the mean of partial sequences of 4 mitochondrial loci, namely cox1a, cox1b, nd3, and atp6. Nucleotide polymorphism ranges from 0.6 (nd3) to 2.7% (cox1a). Eight alleles had not been previously reported. Multilocus analysis showed that all the isolates were from the Echinococcus granulosus sensu stricto (G1 genotype). Nineteen different haplotypes made of the concatenation of 4 sequenced loci were observed, the most common type clustering 13 isolates (36.1%). Twelve of these haplotypes had never been described previously and fifteen (41.7%) haplotypes were represented by only one isolate. Using sequences from this study and others retrieved from the GenBank database, any clustering either according to the geographic origin within Algeria or according to the human or animal origin of the isolates could be demonstrated supporting that genotype G1 population genetics has been shaped by intensive animal breeding.

Pure large cell neuroendocrine carcinoma of the gallbladder, is surgical relentlessness beneficial? A case report and literature review.

Pure large cell neuroendocrine carcinoma of the gallbladder is a rare disease. However, the prognosis of this aggressive tumor is poor with short survival after diagnosis. We are describing in this manuscript a case of pure large cell neuroendocrine carcinoma in which survival exceeded 26 months, after performing two curative surgeries. We are reporting the case of a 68-year-old woman with a history of recovered right breast carcinoma and operated 6 years later for a completely asymptomatic gallbladder tumor of 31 mm. In this case, curative surgery was performed allowing monobloc resection of the gallbladder and the hepatic segments IVb and V, a lymph node dissection was performed to. The histological examination of the specimen and immunohistochemistry confirms that the tumor was a grade 3 pure large cell neuroendocrine carcinoma of gallbladder with lymph node invasion, the hepatic and biliary surgical margins were free. Postoperative adjuvant chemotherapy was administered and the evolution was eventless until the discovery at 20 months of a lymph node considered being metastatic recurrence. A second surgery was performed allowing removal of three lymph nodes. This time, a different protocol of chemotherapy was administered to our patient who remains alive and without recurrence at 26 months from her first surgery. Surgical relentlessness with free margins resections associated with appropriate chemotherapy probably improves the survival of patients suffering from this rare and aggressive tumor.

Factors influencing the occurrence of biliary stricture above the confluence in major bile ducts injuries: Analysis of a case series.

BACKGROUND: bile duct injury is a complication that occurs mainly after cholecystectomy. Outcomes of biliary repair surgery are worse when the stricture level is above the biliary confluence. METHOD: A single centred retrospective study was carried out on patients operated in our department for biliary stricture after a major bile duct injury over the period from January 2010 to May 2018. Only patients operated for biliary stricture were included. This study aimed to determine the independent factors influencing the occurrence of a stricture above de biliary confluence. Univariate and multivariate binary regression was used for data analysis. RESULTS: Fifty-three patients were included, they were 43 women and 10 men, sex-ratio was 0.23. Thirty-one patients had Grade E3-E4-E5 stricture (58,5%), and patients who had a failure of a previous repair surgery accounted for 36% (n = 19) of our patients.After univariate and multivariate analysis, only laparoscopic cholecystectomy (OR = 7.58, CI = [1.47-38, 91], P = 0.015) and failure of anterior biliary repair surgery (OR = 7, 12, CI = [1.29-39.42], P = 0.025) were independent factors associated with more frequent occurrence of biliary strictures above the confluence. CONCLUSION: Failure of biliary repair surgery makes the pre-existing biliary stricture progress and compromises subsequent surgery's outcomes. It is important to refer all cases of bile duct injury to specialized centers to increase the chances of success of the first biliary repair surgery.

[Choledochocele: a rare variety of congenital cystic dilation of the bile ducts]. / Le cholédococèle: une variété rare de dilatation kystique congénitale des voies biliaires.

Cystic dilation of the bile ducts (CDBD) is a rare disease in which pain is the major symptom. It mainly affects young women. Carcinogenesis is the main risk of this disease. Complete surgical resection is the treatment of choice. TODANI's classification defines five groups of congenital cystic dilatation of the bile ducts. Choledochocele is classi?ed as type III and is defined as an isolated cystic dilation of the ampulla of Vater. Few studies were published in the literature due to its rarity and to its multitude of clinical presentations. The lack of guidelines resulted in approaches to treatment based on endoscopic treatment, making rapid progress but considered as a conservative option, or on hardly obtainable complete surgical resection. This study reports the case of a 32-year old female patient presenting with cyclic epigastric pain. Morpho-clinical examinations showed holedochocele. Complete resection of the cyst via duodenotomy with reimplantation of the common bile duct and of the Wirsung duct associated with cholecystectomy were performed.

Laparoscopic management of a drain site evisceration of the vermiform appendix, a case report.

INTRODUCTION: Peritoneal cavity drainage is not riskless and several publications reported drain induced complications. However, till this day, abdominal drainage is still a subject of divergence between necessity and usual operative practice. We describe in this publication an exceptional complication of drainage, which is the drain site evisceration of the appendix. CASE PRESENTATION: We report the case of a 47-years-old patient, initially operated for perforated ulcer peritonitis, in whom an evisceration occured 48h after the removal of an intraperitoneal drain placed in the Douglas pouch, the physical examination predicated the presence of a herniated omentum fringe, as a precaution a laparoscopic exploration was performed and revealed that the eviscerated organ was the vermiform appendix, then a two trocars appendectomy was performed and the orifice of the evisceration was safely closed. DISCUSSION: Since the first description in 1995, only seven cases were reported in the literature, we propose a new management of the drain site evisceration of the appendix, including laparoscopic exploration, and both side control of the drain site defect closure, our technique seems safer. CONCLUSION: The laparoscopic approaches must have a place in the management of the drain site eviscerations.

A spontaneous transomental hernia through the greater omentum.

Transomental hernia is the rarest form of internal hernias. Clinical expression of this pathology is ambiguous and diagnosis is often made at complication phase, after irreversible strangulation of the herniated loop. Radiological diagnosis is still difficult and intraoperative exploration usually allows discovering this pathology when patient is operated for acute intestinal obstruction. Treatment is surgical and aims to treat intestinal obstruction and prevent recurrence. We describe the case of a 65 years old male operated for a preoperatively suspected internal hernia; surgical exploration found a transomental hernia trough the greater omentum.