35 research outputs found

    Une maladie immunoprolifĂ©rative de l’intestin grĂȘle rĂ©vĂ©lĂ©e par une invagination intestinale aigue: Ă  propos d’un cas

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    La maladie immunoprolifĂ©rative de l'intestin grĂȘle IPSID est un lymphome rare qui se dĂ©veloppĂ© Ă  partir du systĂšme lymphoĂŻde associĂ© aux muqueuses au niveau de l'intestin grĂȘle. Sa rĂ©vĂ©lation par une  invagination intestinale aigue est exceptionnelle et n'a jamais Ă©tĂ© rapportĂ© dans la littĂ©rature auparavant. Nous rapportons le cas d'un patient de 65ans, admis aux urgences dans un tableau d'invagination  intestinale aigue. Le scanner abdominal a mis en Ă©vidence masse grĂȘlique Ă  paroi concentrique avec incarcĂ©ration du segment  mĂ©sentĂ©rique au sein de la lĂ©sion fortement Ă©vocatrice d'une invagination intestinale. Le patient a Ă©tĂ© opĂ©rĂ© et a bĂ©nĂ©ficiĂ© d'une rĂ©section ilĂ©ale emportant le boudin d'invagination. L'examen histologique de la masse a Ă©tĂ© en faveur d'une maladie des chaines alpha transformĂ©e en un lymphome B diffus Ă  grandes cellules. Les auteurs rapportent un cas rare d'une IPSID rĂ©vĂ©lĂ©e par une invagination intestinale aigue et Ă  travers cette observation, mettent en relief les principaux aspects cliniques, histologiques, thĂ©rapeutiques de cette entitĂ© avec une revue de la littĂ©rature.Key words: Maladie immunoprolifĂ©rative, intestin grĂȘle, invagination intestinale

    Kinetics of maternal antibodies against low pathogenic avian influenza virus H9N2 and interference with vaccination in broiler chickens

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    La vaccination systĂ©matique des reproducteurs contre l’IAFP H9N2 permet la transmission d’une immunitĂ© passive Ă  leur descendance. Cependant, les anticorps maternels anti-H9N2 prĂ©sents chez les jeunes poussins Ă  l’éclosion, leurs offrent une certaine protection pendant les premiers jours d’ñge et peuvent de mĂȘme provoquer une interfĂ©rence avec la vaccination. Le but de cette Ă©tude est d'Ă©valuer la cinĂ©tique des AOMs en prĂ©sence et/ou en absence de vaccination. Dans la premiĂšre partie, nous avons suivi la cinĂ©tique des anticorps anti-H9N2 chez des poussins non vaccinĂ©s Ă©levĂ©s en isolement. Dans la deuxiĂšme partie, des lots de poulets de chair vaccinĂ©s avec 4 diffĂ©rents vaccins, administrĂ©s Ă  3 diffĂ©rents Ăąges, rĂ©partis dans  plusieurs rĂ©gions du Maroc ont fait l’objet d’un suivi sĂ©rologique, sur l’ensemble des rĂ©sultats obtenus, un effet Ăąge de vaccination a Ă©tĂ© prouvĂ© par analyse statistique ce qui met en cause une interfĂ©rence entre les vaccins anti-IAFP H9N2 et les anticorps d’origine maternelles. Mots clĂ©s: Influenza aviaire faiblement pathogĂšne H9N2 (IAFP H9N2), Anticorps d’origine maternelle (AOM), ELISA, IHA, Temps de demi-vieSystematic vaccination of Breeders against AILP H9N2 allows the transmission of passive immunity to their progeniture. However, the maternal anti-H9N2 antibodies present in day old chicks offer them some protection during the first days of age and may interfere with vaccination. The aim of this study is to assess the kinetics of AOMs in the presence and/or in the absence of vaccination. In the first part, we followed the kinetics of anti-H9N2 antibodies in unvaccinated chicks reared in isolation. In the second part, batches of broilers vaccinated with 4 different vaccines, administered at 3 different ages, distributed in several regions of Morocco were the subject of serological monitoring, on all the results obtained, an effect Age of vaccination has been proven by statistical analysis which calls into question the interference between H9N2 anti-IAFP vaccines and maternal antibodies. Keywords: Low pathogenic avian influenza H9N2 (IAFP H9N2), Maternal antibody, ELISA, HI, Half-lif

    Schwannome cervical du nerf vague: Stratégies diagnostique et thérapeutique

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    Les schwannomes cervicaux sont des tumeurs bĂ©nignes des nerfs pĂ©riphĂ©riques dĂ©veloppĂ©es exclusivement Ă  partir des cellules de Schwann. L'atteinte du nerf vague cervical est relativement rare, et les auteurs en rappellent, Ă  partir d'un cas, les signes radiologiques Ă©vocateurs ainsi que les caractĂ©ristiques histologiques. Le traitement de ces tumeurs est chirurgical. Un patient de 32 ans consultait pour une masse latĂ©ro-cervicale supĂ©rieure droite isolĂ©e, Ă©voluant depuis trois ans. Une imagerie mĂ©dicale (TDM et IRM) cervicale mettait en Ă©vidence une masse vascularisĂ©e au temps retardĂ©, refoulant la veine jugulaire interne en dehors et l'axe carotidien en dedans. Un examen cytologique non contributif conduisait Ă  rĂ©aliser une exĂ©rĂšse chirurgicale extracapsulaire de la masse par voie de cervicotomie. Il s'agissait d'une tumeur rĂ©tro-jugulo-carotidienne dĂ©veloppĂ©e aux dĂ©pens du nerf vague cervical droit. L'analyse histologique concluait Ă  un schwannome. Les suites opĂ©ratoires Ă©taient simples. Le schwannome du nerf vague est une tumeur bĂ©nigne rare, qui doit ĂȘtre Ă©voquĂ©e devant toute masse latĂ©rocervicale isolĂ©e. L'imagerie mĂ©dicale (TDM et IRM) cervicale prĂ©opĂ©ratoire reprĂ©sente les examens de choix indispensable pour Ă©voquer le diagnostic. Le traitement est chirurgical, afin de confirmer le diagnostic histologique. L'exĂ©rĂšse chirurgical complĂšte extracapsulaire est possible et est le seul garant de la non rĂ©cidive.Pan African Medical Journal 2013; 14: 7

    Breast tuberculosis: a case report

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    Mammary tuberculosis is a rare disease that affects young women during the genital period, usually between the ages of 20 and 40 years, and remains rare in postmenopausal women. Its risk factors are multiparity, breastfeeding, breast trauma and chronic mastitis. Depending on the mode of contamination, there are 2 forms of mammary tuberculosis: primary or secondary. On ultrasound, breast tuberculosis often appears as a heterogeneous hypoechoic image, poorly limited with minimal posterior enhancement. It may also appear as a hypoechoic, homogeneous or heterogeneous image, well limited with posterior enhancement and some calcifications. Histological criteria suggestive of breast tuberculosis are the presence of epithelioid follicles and Langhans-type giant cells, which may or may not be associated with caseous necrosis. A certain number of diagnoses must be eliminated before the diagnosis of breast tuberculosis can be made, in particular breast cancer; it should be noted that the literature describes forms associating cancer and breast tuberculosis, hence the need for a histological study of the breast tissue in order to eliminate an associated carcinoma. It poses diagnostic and therapeutic problems. Current treatment is based on antituberculosis chemotherapy sometimes associated with surgery. The evolution of the disease is usually favourable with a well conducted treatment

    Primary angiosarcoma of the breast: a case report

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    Primary angiosarcoma of the breast is extremely rare. Radiologic findings are often non specific and may appear completely normal in one-third of cases with primary angiosarcoma. The prognosis is usually poor because of the high rates of local recurrence and early development of metastasis. Surgical removal followed by adjuvant chemotherapy seems improve the prognosis. We report a case of a 33- year-old woman with a highly vascular mass in her right breast which is suggestive of malignancy at radiology. Initial core needle biopsy showed a benign hemangioma. The patient underwent a mastectomy. The tumor histology showed papillary formations and vascular structures lined by atypical cells with hyperchromatic nucleus and eosinophilic cytoplasm with solid areas. The tumor cells expressed CD34 and CD31 but were negative for cytokeratin. The diagnosis of angiosarcoma grade III was made. The patient is now receiving chemotherapy. She is still alive. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/153048120088978

    Hamartome lipomateux superficiel de Hoffmann-Zurhelle

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    L'hamartome lipomateux superficiel de Hoffmann-Zurhelle est une tumeur bĂ©nigne souvent congĂ©nitale. Histologiquement, il est caractĂ©risĂ© par la prĂ©sence hĂ©tĂ©rotopique de cellules adipeuses quelquefois lipoblastiques autour des trajets vasculaires dermiques. Nous rapportons une nouvelle observation de forme multiple Ă  rĂ©vĂ©lation tardive chez une femme ĂągĂ©e de 31 ans sans antĂ©cĂ©dents pathologiques notables qui a Ă©tĂ© adressĂ©e à la consultation pour des papules et tumeurs asymptomatiques de couleur chaire se regroupent en placards Ă  disposition linĂ©aire et zostĂšriforme au niveau de la face externe de la cuisse droite depuis l'Ăąge de 13 ans, augmentant progressivement de taille. L'Ă©tude histologique d'un fragment biopsique avait montrĂ© un Ă©piderme rĂ©gulier, plicaturĂ© et kĂ©ratinisant, soulevĂ© par un tissu fibro-adipeux abondant incluant quelques vaisseaux sanguins aux dĂ©pens du derme moyen. Ces donnĂ©es cliniques et histologiques ont permis de retenir le diagnostic d'hamartome lipomateux superficiel. Une exĂ©rĂšse chirurgicale des tumeurs de grande taille a Ă©tĂ© proposĂ©e complĂ©tĂ© par le laser CO2 pour le reste de lĂ©sions cutanĂ©es. L'hamartome lipomateux superficiel est une lĂ©sion bĂ©nigne sans potentiel de malignitĂ©. L'exĂ©rĂšse chirurgicale peut ĂȘtre proposĂ©e si la lĂ©sion est gĂȘnante ou dans un but essentiellement esthĂ©tique.Keywords: Hamartome lipomateux, Hoffmann-Zurhelle, tumeur bĂ©nign

    Omphalolith: Une présentation déroutante

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    Les omphalolithes sont des concrĂ©tions crayeuses constituĂ©es de dĂ©bris de kĂ©ratine et de sĂ©bum, qui s’accumulent au niveau de l’ombilic. Peu d’observations ont Ă©tĂ© rapportĂ©es dans la littĂ©rature. Elles sont l’apanage des ombilics profonds, et sont parfois associĂ©es Ă  une mauvaise hygiĂšne. Elles peuvent passer inaperçues pendant des annĂ©es ne se rĂ©vĂ©lant qu’en cas d’inflammation, d’infection ou d’ulcĂ©ration. Nous rapportons un cas particulier d’omphalolithe rĂ©vĂ©lĂ© par une tumeur ombilicale d’aspect framboisĂ©

    A rare case of locally advanced fibrosarcoma of diaphysal humerus managed successfully with limb-sparing procedures after neoadjuvant chemotherapy

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    Fibrosarcomas (FS) of bone are a rare malignancy accounting for less than 5% of all primary malignant bone neoplasms. Diagnosis and treatment approaches of this entity are complex and require a skilled and experienced multidisciplinary team

    Global Retinoblastoma Presentation and Analysis by National Income Level.

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    Importance: Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives: To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants: A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures: Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results: The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance: This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs

    Travel burden and clinical presentation of retinoblastoma: analysis of 1024 patients from 43 African countries and 518 patients from 40 European countries

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    BACKGROUND: The travel distance from home to a treatment centre, which may impact the stage at diagnosis, has not been investigated for retinoblastoma, the most common childhood eye cancer. We aimed to investigate the travel burden and its impact on clinical presentation in a large sample of patients with retinoblastoma from Africa and Europe. METHODS: A cross-sectional analysis including 518 treatment-naĂŻve patients with retinoblastoma residing in 40 European countries and 1024 treatment-naĂŻve patients with retinoblastoma residing in 43 African countries. RESULTS: Capture rate was 42.2% of expected patients from Africa and 108.8% from Europe. African patients were older (95% CI -12.4 to -5.4, p<0.001), had fewer cases of familial retinoblastoma (95% CI 2.0 to 5.3, p<0.001) and presented with more advanced disease (95% CI 6.0 to 9.8, p<0.001); 43.4% and 15.4% of Africans had extraocular retinoblastoma and distant metastasis at the time of diagnosis, respectively, compared to 2.9% and 1.0% of the Europeans. To reach a retinoblastoma centre, European patients travelled 421.8 km compared to Africans who travelled 185.7 km (p<0.001). On regression analysis, lower-national income level, African residence and older age (p<0.001), but not travel distance (p=0.19), were risk factors for advanced disease. CONCLUSIONS: Fewer than half the expected number of patients with retinoblastoma presented to African referral centres in 2017, suggesting poor awareness or other barriers to access. Despite the relatively shorter distance travelled by African patients, they presented with later-stage disease. Health education about retinoblastoma is needed for carers and health workers in Africa in order to increase capture rate and promote early referral
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