Research Topics
Species | Najat MourraSummaryCountry: France Publications
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Publications
Involvement of Meckel diverticulum in Crohn disease associated with pancreatic heterotopiaNajat Mourra
Department of Pathology, Hopital St Antoine, Paris, France
Arch Pathol Lab Med 127:E99-E100. 2003..We report herein the presence of Crohn disease within a Meckel diverticulum, with a normal small bowel immediately adjacent to the diverticulum, associated with pancreatic heterotopia...
Immunohistochemical analysis of adenocarcinoma of the small intestine: a tissue microarray studyM Svrcek
Department of Pathology, Saint-Antoine Hospital, AP-HP, F75571 Paris Cedex 12, France
J Clin Pathol 56:898-903. 2003..The carcinogenetic process appears to be similar in small intestinal adenocarcinomas and malignant ampullary tumours...
Clinical challenges and images in GI. Extrahepatic biliary cystadenoma with mesenchymal stromaNajat Mourra
Department of Pathology, , Paris, France
Gastroenterology 134:1295, 1637. 2008
Adrenalectomy for clinically isolated metastasis from colorectal carcinoma: report of eight casesNajat Mourra
Department of Pathology, Hopital St Antoine, Paris, France
Dis Colon Rectum 51:1846-9. 2008..Metastasis to the adrenal glands is a relatively frequent finding at autopsy. Adrenal metastasis of colorectal carcinoma is rare (14 percent). Isolated adrenal metastasis is even rarer, and presents a therapeutic dilemma...
Isolated metastatic tumors to the pancreas: Hôpital St-Antoine experienceNajat Mourra
Department of Pathology, Hopital St Antoine, AP HP, Paris, France
Pancreas 39:577-80. 2010..The leading sources of metastases are breast, lung, kidney, and skin (melanoma). We present our experience with 12 cases of isolated pancreatic metastasis...
Lymph node metastases of prostatic adenocarcinoma in the mesorectum in patients with adenocarcinoma or villous tumor of the rectum with collision phenomenon in a single lymph node: report of five casesNajat Mourra
Department of Pathology, Hopital Saint Antoine, Assistance Public Hôpitaux de Paris, Universite Pierre et Marie Curie, 184 rue du Faubourg Saint Antoine, 75012 Paris, France
Dis Colon Rectum 48:384-9. 2005..We report five patients with metastatic prostatic carcinoma to mesorectal lymph nodes, with the "collision phenomenon" in one lymph node. The diagnosis of prostate cancer was clinically unsuspected in two cases...
Epithelioid solitary fibrous tumor in the ischioanal fossaNajat Mourra
Department of Pathology, , 184, rue du Faubourg St-Antoine, 75012 Paris, France
Virchows Arch 446:674-6. 2005
Clusterin is highly expressed in pancreatic endocrine tumours but not in solid pseudopapillary tumoursN Mourra
Department of Pathology, St Antoine Hospital, Paris, France
Histopathology 50:331-7. 2007....
Massive haematemesis in an African maleN Mourra
Department of Pathology, , 184, rue du Faubourg St-Antoine, 75012, Paris, France
Gut 57:49, 58. 2008
Malignant deciduoid mesothelioma: a diagnostic challengeNajat Mourra
Department of Pathology, Hopital St Antoine, Paris, France
Arch Pathol Lab Med 129:403-6. 2005..The patient died 14 months after the first operation. This observation confirms the poor prognosis of this entity and the importance of the differential diagnosis of pseudotumoral deciduosis...
MYH biallelic mutation can inactivate the two genetic pathways of colorectal cancer by APC or MLH1 transversionsJeremie H Lefevre
Department of Digestive Surgery, Hopital Saint Antoine AP HP, University Pierre et Marie Curie Paris VI, 184 rue du Faubourg Saint Antoine, 75571 Paris, France
Fam Cancer 9:589-94. 2010..588 + 5G > T) leading to a complete deletion of exon 7 at the RNA level. This observation demonstrates that MLH1 can be a target of MYH transversions leading to MSI phenotype...
Tissue microarray technology: validation in colorectal carcinoma and analysis of p53, hMLH1, and hMSH2 immunohistochemical expressionFlorence Jourdan
Department of Pathology, , 184 rue du Faubourg Saint-Antoine, 75012 Paris, France
Virchows Arch 443:115-21. 2003..We showed that 48.5% overexpressed p53 and 8.7% lost hMLH1 or hMSH2. Tissue microarray technology, validated in colorectal carcinoma, appears as a useful research tool for rapid analysis of the clinical interest of molecular alterations...
Ulipristal acetate does not impact human normal breast tissueLaudine Communal
Inserm UPMC, UMRS 938, Hopital Saint Antoine, 75012 Parris, France
Hum Reprod 27:2785-98. 2012..The aim of this study was to determine UPA actions mediated by PR and glucocorticoid receptor (GR) in normal and transformed breast...
High-resolution genotyping of chromosome 8 in colon adenocarcinomas reveals recurrent break point but no gene mutation in the 8p21 regionNajat Mourra
CHU St Antoine, Department of Pathology, Paris, France
Diagn Mol Pathol 17:90-3. 2008..No mutation was found, suggesting more complex mechanisms of inactivation or side effects of chromosome arm 8q duplication, which might be up-regulating oncogenes not located within the deleted region...
Lumboaortic and iliac lymphadenectomy for lymph node recurrence of colorectal cancer: prognostic value of the MSI phenotypeJeremie H Lefevre
Department of Digestive Surgery, Hospital Saint Antoine AP HP, University Paris VI Pierre and Marie Curie, 184 rue du Faubourg Saint Antoine, 75012, Paris, France
Ann Surg Oncol 15:2433-8. 2008..The aim of our study was to assess the carcinological results of lymphadenectomy for ILNR and to identify prognostic factors that may be used to select patients for this aggressive surgical approach...
Microsatellite instability in colorectal carcinoma. The comparison of immunohistochemistry and molecular biology suggests a role for hMSH6 [correction of hMLH6] immunostainingValerie Rigau
Department of Pathology, AP HP, Hopital Saint Antoine, Paris, France
Arch Pathol Lab Med 127:694-700. 2003..The identification of cancers associated with MSI requires classical molecular testing as the gold standard...
Implication of MYH in colorectal polyposisJeremie H Lefevre
Department of Digestive Surgery, Hopital Saint Antoine AP HP, University Pierre et Marie Curie, Paris, France
Ann Surg 244:874-9; discussion 879-80. 2006..The aim of this study was to determine the frequency of MYH mutations in one large population of polyposis patients without APC mutation identified...
Glucocorticoid receptor activity discriminates between progesterone and medroxyprogesterone acetate effects in breast cellsAurélie Courtin
Inserm UPMC, UMRS 938, Hopital Saint Antoine, Paris, France
Breast Cancer Res Treat 131:49-63. 2012..The consequences of MPA glucocorticoid potencies as well as the importance of GR in breast tissue merit a reappraisal...
Anatomic and pathologic findings at external phased-array pelvic MR imaging after surgery for anorectal diseaseChristine Hoeffel
Department of Radiology, Hopital Saint Antoine, 184 rue du Faubourg Saint Antoine, 75571 Paris Cedex 12, France
Radiographics 26:1391-407. 2006..Thus, familiarity with the appearances of postoperative anatomic changes, complications, and tumor recurrence is essential for accurate MR imaging evaluation after surgery for anorectal disease...
Multiple stomas for recurrent life-threatening gastrointestinal bleeding: report of a caseJeremie H Lefevre
Department of Digestive Surgery, Hospital Saint Antoine AP HP, Paris, University Paris VI Pierre and Marie Curie, Paris, France
Dis Colon Rectum 51:1714-8. 2008..This case report is followed by a review of the literature of the management of lower gastrointestinal bleeding...
Assessment of MRI and MRCP in diagnosis of biliary cystadenoma and cystadenocarcinomaMaïté Lewin
Department of Radiology, Saint Antoine University Hospital, Assistance Publique des Hopitaux de Paris, 184 rue du Faubourg Saint Antoine, 75012, Paris, France
Eur Radiol 16:407-13. 2006..Gadolinium-enhanced MRI in combination with MRCP is a valuable tool for the diagnosis of BCA or BCAC. However, no specific information is gained for POS detection...
Mucinous cystadenoma of the mesocolon, a rare entity frequently presenting with features of malignity: two case reports and review of the literatureFrançois Cauchy
Department of General and Digestive Surgery, University Pierre and Marie Curie, Paris VI, Hopital Saint Antoine, 184, rue du Faubourg St Antoine, 75012 Paris, France
Clin Res Hepatol Gastroenterol 36:e12-6. 2012..Recently, they have been included in an updated classification of mesenteric cysts and cystic tumors. The WHO classification (ICD 10) divides them into three subcategories according to their malignant behavior...
Hepatocellular adenoma displaying a HNF1alpha inactivation in a patient with familial adenomatous polyposis coliEmmanuelle Jeannot
INSERM, U674, IUH, Universite Paris 7, Paris, France
J Hepatol 45:883-6. 2006..Altogether, these results suggest that benign hepatocellular carcinogenesis may be dependent on or independent of the Wnt/beta-catenin pathway in patients with FAP...
MRI of rectal disordersChristine C Hoeffel
Department of Radiology, Université Paris Descartes Faculté de Medecine Cochin Port Royal, Hopital Saint Antoine, 184 rue du Faubourg, Saint Antoine 75571, Paris Cedex 12, France
AJR Am J Roentgenol 187:W275-84. 2006..CONCLUSION: A wide spectrum of disease processes can involve the rectum in adults. MRI is the technique of choice in the definitive diagnosis of these disease conditions, mainly because of its superior tissue contrast differentiation...
Malignant intrahepatic biliary papillomatosis associated with viral C cirrhosisNajat Mourra
Department of Pathology, , Paris, France
Arch Pathol Lab Med 126:369-71. 2002..We report herein a case of malignant intrahepatic biliary papillomatosis associated with cirrhosis secondary to hepatitis C. To the best of our knowledge, this is the first report of this association...
Clinical challenges and images in GI. Esophageal tubular duplicationNajat Mourra
Department of Pathology, Hopital St-Antoine, Paris, France
Gastroenterology 134:669, 899. 2008
Unusual adrenal incidentalomas: magnetic resonance imaging features with pathological correlationChristine Hoeffel
Université Paris Descartes Faculté Cochin Port Royal, Paris, France
J Comput Assist Tomogr 30:917-25. 2006..When possible, they are correlated with the findings at gross and microscopic analysis, to help in understanding the mechanisms by which magnetic resonance imaging may aid in the characterization of the incidental adrenal mass...
Ex vivo sentinel lymph node mapping in colorectal cancerStephen W Bell
Department of Digestive Surgery, Saint-Antoine Hospital, AP-HP, CancerEst, , Paris, France
Dis Colon Rectum 48:74-9. 2005..This precludes the use of this technique in routine clinical practice. There may be a role in a research setting to help define the prognostic significance of micrometastases...
Prognostic significance of microsatellite instability determined by immunohistochemical staining of MSH2 and MLH1 in sporadic T3N0M0 colon cancerY Parc
Department of Digestive Surgery, Hospital Saint Antoine, Assistance Publique Hopitaux de Paris, University Pierre et Marie Curie, 184 rue du Faubourg Saint Antoine, 75012 Paris, France
Gut 53:371-5. 2004..The study was conducted in a large cohort of patients in a single institution who had a curatively resected T3N0M0 colon cancer and were not receiving adjuvant therapy...
Metastatic tumors to the colon and rectum: a multi-institutional studyNajat Mourra
Department of Pathology, Hopital St Antoine, AP HP, 184 rue du Faubourg St Antoine, 75012 Paris, France
Arch Pathol Lab Med 136:1397-401. 2012..Objective.-To determine the incidence of truly colorectal metastases, and subsequent clinicopathologic findings, in a substantial colorectal cancer population collected from 7 European centers...
Presacral neuroendocrine carcinoma developed in a tailgut cyst: report of a caseNajat Mourra
Department of Pathology, , 184 rue du Faubourg St-Antoine, AP-HP, 75012 Paris, France
Dis Colon Rectum 46:411-3. 2003..To the best of our knowledge this is only the second such tumor reported in the literature...
High frequency of chromosome 14 deletion in early-onset colon cancerNajat Mourra
Department of Pathology, Saint Antoine Hospital, Paris, France
Dis Colon Rectum 50:1881-6. 2007..This study was designed to depict the genetic mechanisms underlying early-onset microsatellite stable colon cancers...
Mucinous colon carcinomas with microsatellite instability have a lower microvessel density and lower vascular endothelial growth factor expressionDominique Wendum
Department of Pathology, Hopital Saint Antoine, AP HP, 184 rue du Faubourg Saint Antoine, 75571 Paris Cedex 12, France
Virchows Arch 442:111-7. 2003..A low COX-2 expression could be related to the medullary phenotype. However, this has to be confirmed in a larger series. Finally, the low MVD of MSI+ mucinous colon adenocarcinomas could participate in their overall better prognosis...
Colorectal duplication in adults: report of seven cases and review of the literatureNajat Mourra
Department of Pathology, Hopital Saint Antoine, AP HP, Paris, France
J Clin Pathol 63:1080-3. 2010..Colorectal duplications (CDDs) occur in only 6.8% of cases, rarely in adults, and are revealed by abdominal pain and intestinal obstruction. Malignant changes are uncommon, but are most often found in the colon...
Unilocular acinar cell cystadenoma of the pancreas an unusual acinar cell tumorDenis Chatelain
Anatomic Pathology Department, St Antoine Hospital, Paris, France
Am J Clin Pathol 118:211-4. 2002..We report a case of cystic acinar cell tumor of the pancreas with benign gross and histologic features that could be added to the list of cystic neoplasms of the pancreas as acinar cell cystadenoma...
[Macroscopic examination of esophagectomy specimens]Jean Francois Flejou
Service d Anatomie et de Cytologie Pathologiques, Hopital Saint Antoine, AP HP, 184, rue du Faubourg St Antoine, 75571, Paris Cedex 12
Ann Pathol 23:371-8. 2003..This article describes a protocol for the examination of these specimens in surgical pathology departments...
[Autoimmune pancreatitis mimicking an intra-ductal papillary mucinous neoplasm of the pancreas: an original case]A Kraemer
Services de chirurgie generale et digestive, Hopital Saint Antoine, UPMC Paris 6, 184, rue du Faubourg Saint Antoine, 75012 Paris, France aurore
Gastroenterol Clin Biol 32:635-9. 2008..A treatment with corticosteroids was carried out. To our knowledge, this is the first reported case of AIP mimicking IPMN of the main pancreatic duct...
Glucocorticoid receptor and breast cancerMyriam Vilasco
Inserm UPMC, UMRS 938, Hopital Saint Antoine, 184 rue du Faubourg Saint Antoine, 75012, Paris, France
Breast Cancer Res Treat 130:1-10. 2011..Finally, we discuss the participation of GR in breast tumorigenesis under hormone replacement therapy...
Endometrial stromal sarcoma of the rectosigmoid colon arising in extragonadal endometriosis and revealed by portal vein thrombosisN Mourra
Department of Pathology, Hopital Saint Antoine, AP HP, 184 rue faubourg St Antoine, 75012 Paris, France
Arch Pathol Lab Med 125:1088-90. 2001..The main differential diagnosis of this unusual colonic neoplasm includes primary mesenchymal tumors, such as gastrointestinal stromal tumors...
Immunohistochemical staining for mismatch repair proteins, and its relevance in the diagnosis of hereditary non-polyposis colorectal cancerJ Ewald
Department of Digestive Surgery, Hopital Saint Antoine AP HP, Universite Pierre et Marie Curie, Paris, France
Br J Surg 94:1020-7. 2007..This study evaluated the ability of IHC to detect germline mutations in an unselected group of patients with colorectal cancer (CRC)...
Squamous metaplasia of the peritoneum: a potential diagnostic pitfallN Mourra
Department of Pathology, Hopital Saint-Antoine, Paris, France
Histopathology 44:621-2. 2004
Cervical ectopic thymoma: a diagnostic pitfall on frozen sectionN Mourra
Department of Pathology, , AP-HP, Paris, France
Histopathology 46:583-5. 2005
Myxoid perineal tumour in a 25-year-old womanN Mourra
Department of Pathology, , AP-HP, Paris, France
Histopathology 49:533-6. 2006
