A. Zentar

Military Hospital Mohammed V, Rabat, Rabat, Rabat-Salé-Zemmour-Zaër, Morocco

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Publications (82)28.52 Total impact

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    ABSTRACT: Biliary papillomatosis is a condition characterized by multiple papillary tumors of variable distribution and extent within the biliary tract. Papillary carcinoma can develop in these lesions. It is a rare biliary pathological entity and its clinical features and outcome are not well known.
    Journal of medical case reports. 05/2014; 8(1):148.
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    ABSTRACT: A left paraduodenal hernia is a rare congenital malrotational anomaly of the midgut that occurs in the paraduodenal fossa of Landzert to the left of the fourth duodenum. It is responsible for approximately 1% of small bowel obstructions. We report a case of left paraduodenal hernia combined with small bowel obstruction in a 47-year-old Mediterranean woman who had a history of recurrent abdominal pain. An abdominal computed tomography scan showed a saclike mass clustered in the left upper quadrant but failed to yield a clear diagnosis. We describe the surgical anatomy of this disease and the emergency surgical management together with a short review of the literature. Even though a left paraduodenal hernia is rare, it must be suspected in any upper intestinal occlusion. The high morbidity and mortality rate of complicated cases should motivate preventive treatment in case of incidental operative discovery.
    Journal of Medical Case Reports 12/2013; 7(1):272.
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    Journal of Gastrointestinal Cancer 05/2013;
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    ABSTRACT: Les liposarcomes sont des tumeurs malignes d’origine embryologique mésodermique dépendant du tissu graisseux. Ils sont rares. L’espace rétropéritonéal est leur deuxième localisation après les membres, les autres localisations, dont particulièrement les sièges périnéal et scrotal, sont rares. Le traitement fondamental est une chirurgie complète et étendue, mais celle-ci est souvent difficile du fait de l’extension de ces tumeurs dans divers défilés anatomiques. La qualité de l’exérèse est le seul facteur pronostique déterminant retrouvé dans la littérature. Le pronostic de ces tumeurs reste défavorable en rapport avec un taux élevé de récidive locorégionale. Nous rapportons une observation d’un homme de 75 ans chez qui le diagnostic de liposarcome a été porté rétrospectivement après l’étude anatomopathologique d’une volumineuse tumeur inguinoscrotale. À la lumière d’une nouvelle observation de liposarcome paratesticulaire et de la revue de littérature, nous nous proposons d’analyser les différents aspects épidémiologiques, les difficultés diagnostiques de cette affection et d’en préciser les moyens thérapeutiques et les éléments pronostiques.
    Journal africain du cancer / African Journal of Cancer 01/2013; 5(1).
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    ABSTRACT: INTRODUCTION: Bronchogenic cysts are developmental anomalies of the primitive foregut which mostly occur in the lung. Gastric bronchogenic cysts are extremely rare; few cases have been reported in the literature and the diagnosis was often made following surgical resection. CASE PRESENTATION: A 40-year-old North African man was admitted to our hospital with a gastric submucosal mass. An endoscopic ultrasound revealed a unilocular cystic mass located in the muscular layer. Its content was echogenic suggestive of mucus. Magnetic resonance imaging confirmed the liquid nature of the cyst and showed a high ratio of proteins. Based on these observations, the diagnosis of bronchogenic cyst was confirmed. An endoscopic monitoring was decided rather than surgery because of the small size of the cyst and the absence of symptoms. CONCLUSION: Although gastric bronchogenic cysts are rare, they should be well known and considered in all differential diagnoses of gastric tumors. We report a new case of gastric bronchogenic cyst and highlight the contribution of morphological tests that currently allow a non-invasive diagnosis.
    Journal of Medical Case Reports 08/2012; 6(1):262.
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    ABSTRACT: Pancreatic-pleural fistula is a rare condition and few data related to its diagnosis and treatment are available. A fistulous connection linking the pancreas with the pleura via the diaphragm or mediastinum through the retroperitoneal area is formed. We report on a case with pancreatic-pleural fistula at its early stages in an alcoholic male patient aged 45 years with known chronic pancreatitis. The operation by Roux-en-Y jejuno-pseudocystostomy was followed by chest tube drainage.
    Arab Journal of Gastroenterology 03/2012; 13(1):38-40.
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    ABSTRACT: We report a case of an extremely rare primary malignant melanoma presenting in the retroperitomeum, indurcing a diagnostic and management problem.
    The Pan African medical journal. 01/2012; 12:20.
  • La Presse Médicale 12/2011; 41(6 Pt 1):672-4. · 0.87 Impact Factor
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    ABSTRACT: A true cyst of the pancreas is extremely rare, and few cases have been reported in adult patients. The authors report a new case of this rare pathological entity. A 35-year-old male patient was admitted to our unit with a cystic mass, about 6cm in diameter, located in the pancreatic head, in proximity to the duodenum, vena cava, biliary tree and right kidney. Clinical features and imagery were suggestive for a benign neoplasm, as did surgical findings. Cystoduodenostomy was done. Histological finding revealed a cyst lined by cuboidal epithelium without morphologic alterations. Analysis of the cyst fluid showed a high level of CA 19-9 (10,000Uml(-1)). After 1-year follow-up, the patient was found to be doing well without any abdominal symptoms. Ultrasound images revealed no cyst recurrence.
    Arab Journal of Gastroenterology 09/2011; 12(3):168-70.
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    ABSTRACT: Juvenile polyposis is a rare disorder. We report an unusual case of juvenile polyposis in a 22-yr-old woman with ulcerative colitis, apparently one of the first cases reported in the literature.
    Journal of Visceral Surgery 02/2011; 148(1):64-6. · 1.17 Impact Factor
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    ABSTRACT: Gallbladder cancer (GBC) represents 3.8% of all gastrointestinal cancers and usually known to be of a poor prognosis. In 0.2–2.9% of cases, this cancer is found in cholecystectomy specimens. A better understanding of spread mode of this tumor helps a better surgical management. The aim of the present review is to underline the management of GBC based on the comprehension of risk factors and anatomic features. A Medline, PubMed database search was performed to identify articles published from 2000 to 2011 using the keywords ‘carcinoma of gallbladder’, ‘incidental gallbladder cancer’, ‘gallbladder neoplasm’ and ‘cholecystectomy’. Some pathological situations such as chronic lithiasis and biliopancreatic junction abnormalities have been clearly identified as predisposing to GBC. Laparoscopy increases peritoneal and parietal tumor dissemination, thus, it should not be performed when GBC is suspected. Most determinant prognostic factors are nodal, perineural and venous involvement, invasion of the cystic duct and the tumor differentiation. The simple cholecystectomy is sufficient for tumors classified as T1a; for other cancers exceeding the muscularis, radical re-resection is required due to the high risk of recurrence. This aggressive surgery improved the overall survival of patients. There is still no standard adjuvant treatment; patients should be included in prospective trials.
    Oncology Reviews 01/2011; 5:241-247.
  • Journal Africain d?Hépato-Gastroentérologie 01/2011; 5(3):157-158.
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    ABSTRACT: Nous rapportons le cas d’une lésion kystique intramurale de l’œsophage, correspondant à un kyste bronchogénique intramural de l’œsophage, posant un problème diagnostique et de prise en charge. We report the case of an intramural cystic lesion of the esophagus, inducing a diagnostic and management problem. Mots clés KysteCongénital–Bronchogénique–Intramural–Œsophage KeywordsCyst–Congenital–Bronchogenic–Intramural–Esophagus
    Journal Africain d?Hépato-Gastroentérologie 01/2011; 5(2):129-132.
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    ABSTRACT: Juvenile polyposis (JP) is a rare disorder. We report an unusual case of juvenile polyposis in a 22-yr-old woman with ulcerative colitis. It's the first case reported in the literature.
    Journal de Chirurgie Viscérale. 01/2011; 148(1):68-70.
  • La Presse Médicale 11/2010; 40(2):218-20. · 0.87 Impact Factor
  • Gastroentérologie Clinique et Biologique 02/2010; 34(2):136-8. · 1.14 Impact Factor
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    ABSTRACT: Paragangliomas are extra-adrenal chromaffin tumours that develop at the expense of neuroectodermal cells of the autonomous nervous system. Retroperitoneal and nonfunctioning forms are very rare. They are often asymptomatic and can reach a substantial size. Treatment usually involves surgery with the goal of total excision. We report the case of a patient who presented with indistinct abdominal pain. This case demonstrates how the diagnosis of retroperitoneal nonfunctioning paragangliomas relies mostly on histological results.
    Canadian journal of surgery. Journal canadien de chirurgie 02/2010; 53(1):E3-4. · 1.63 Impact Factor
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    ABSTRACT: Pancreatic tumors in the midportion have traditionally been treated by an extended right or left pancreatectomy. A medial or central pancreatectomy is an alternative technique for benign or low-grade malignant neoplasms located to the left of the gastroduodenal artery and close to the splenomesenteric confluence. A 38-year-old woman with no previous surgical history presented with epigastric abdominal pain. A computed tomography scan showed a 4 cm heterogeneous lesion within the pancreatic body. This tumor invaded the splenic artery and vein. There was no postoperative diabetes mellitus or exocrine insufficiency. The patient continues to be well after a 10-month follow-up without pancreatic insufficiency or local recurrence, and CT has demonstrated splenic perfusion by the collateral vessels. We believe that a medial or central pancreatectomy may be a safe procedure where there is involvement of the large splenic vessels by a low grade malignant pancreatic tumor and that a systematic splenectomy is not justified.
    JOP: Journal of the pancreas 01/2010; 11(1):75-7.
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    ABSTRACT: IntroductionLes chambres à cathéter implantables (CCI) se sont imposées comme outils indispensables dans la prise en charge des patients ayant besoin de traitement intraveineux de longue durée. L’objectif de ce travail est d’évaluer la pose des CCI sur le plan technique ainsi que les incidents et complications pouvant survenir au cours de la mise en place ou pendant la période d’utilisation. Matériel et méthodeÉtude rétrospective sur six ans incluant toutes les CCI posées entre janvier 2003 et décembre 2008 dans le but d’instaurer une chimiothérapie pour cancer. RésultatsCinq cent quatre-vingts CCI étaient placées, chez 412 hommes et 168 femmes, la moyenne d’âge des patients était de 43 ans avec des extrêmes de 16 et 76 ans. Quatrevingt- dix des sites étaient posés à droite et 10 % à gauche dont la moitié pour échec de la pose à droite. Le site de la pose était de 42 % en céphalique, 31 % en jugulaire externe, 17 % en jugulaire interne et 10 % en sous-clavier. La durée d’utilisation moyenne des cathéters était de sept mois avec des extrêmes de 10 jours et de 36 mois. Dix-sept pour cent des patients avaient présenté au moins une complication dominée par l’infection ou la thrombose. La mortalité liée au geste de pose était nulle dans notre série. ConclusionEn comparant nos résultats aux données de la littérature, nous recommandons l’utilisation de cathéter en polyuréthane, de préférer la voie jugulaire et la pose par un opérateur expérimenté. IntroductionImplantable venous catheters have become indispensable tools in the management of patients requiring long-term intravenous treatment. The objective of this work is to evaluate the implantable venous catheter technique, and incidents and complications that may arise during installation or during use. MethodsRetrospective study over six years covering all implantable venous catheters laid between January 2003 and December 2008 in order to establish chemotherapy for cancer. ResultsA total of 580 implantable venous catheters were placed in 412 men and 168 women. The average age of the patients was 43 years, with ages ranging from 16 to 76 years. Ninety percent of the catheters were placed on the right and 10% on the left, of which half were due to failure of insertion on the right. The sites of the insertion were 42% cephalic, 31% external jugular, 17% internal jugular, and 10% subclavicular. The average duration of catheter use was 7 months, with duration ranging from 10 days to 36 months. Seventeen percent of the patients presented at least a complication dominated by infection or thrombosis. In our series, there was no mortality due to the insertion. ConclusionComparing our results with that of the literature, we recommend the use of polyurethane catheter, to prefer the jugular route, and the insertion be done by an experienced operator. Mots clésSite veineux implantable-Cathéter-Complications KeywordsImplantable venous sites-Catheter-Complication
    Journal africain du cancer / African Journal of Cancer 01/2010; 2(4):240-244.
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    ABSTRACT: Le cystadénome hépatique est une tumeur rare, touchant souvent la femme. Il se caractérise par sa tendance à récidiver après chirurgie et son risque de transformation maligne en cystadénocarcinome. Seul l’examen anatomopa-thologique peut trancher sur la nature bénigne ou maligne de la lésion. Nous rapportons le cas d’un cystadénome muci-neux à stroma mésenchymateux et nous discutons les aspects diagnostiques et thérapeutiques de ce type de lésion qui justifie un traitement chirurgical radical, même en absence d’arguments en faveur de la malignité. The hepatic cystadenoma is a rare tumor, often affecting women. It is characterized by its tendency to recur after surgery and the risk of malignant transformation into cystadenocarcinoma. Only histological examination can decide on the benign or malignant lesion. We report the case of a mucinous cystadenoma with mesenchymal stroma, and we discuss the diagnosis and therapeutic aspects of this type of lesion that justify a radical surgical treatment, even in the absence of arguments in favor of malignancy. Mots clésCystadénome hépatique-Cystadénocarcinome-Hépatectomie KeywordsHepatic cystadenoma-Cystadenocarcinoma-Hepatectomy
    Journal africain du cancer / African Journal of Cancer 01/2010; 2(4):272-274.