73 research outputs found

    The 2-Ga peraluminous magmatism of the Jacobina-Contendas Mirante belts (Bahia, Brazil) : geologic and isotopic constraints on the sources

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    L'étude pétrographique des intrusions granitiques du craton Sao Francisco (Bahia, Brésil) permet de définir la chronologie absolue des épisodes magmatiques et d'identifier les sources magmatiques ainsi que les processus géodynamiques se produisant lors de l'orogenèse transamazonienn

    22q11 Deletion Syndrome and Urogenital Manifestations: A Clinicopathological Case Report.

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    Deletion in the chromosomal region 22q11 results from the abnormal development of the third and fourth pharyngeal pouches during embryonic life and presents an expansive phenotype with more than 180 clinical features described that involve every organ and system. A 23-year-old African woman presented for the first trimester echography, which revealed an isolated anechoic structure suggesting a ureteral dilatation. The suspicion of a malposition of great arteries in the second trimester indicated an amniocentesis leading to a diagnosis of 22q11 deletion. At 32 weeks, the patient was admitted for premature rupture of membranes and gave birth 2 weeks later to a male newborn who presented a respiratory distress syndrome and probably died secondary to a tracheal stenosis. Necropsy revealed typical clinical features of 22q11 deletion associated with left renal agenesis, hypospadias, and penile hypoplasia. We report a case of 22q11 deletion syndrome with typical clinical features associated with urogenital manifestations suspected at the first trimester ultrasound

    Epibulbar osseous choristomaa clinicopathological case series and review of the literature

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    Background:¦Choristomas are benign, congenital tumours composed of normal tissue in an¦abnormal location. Osseous choristomas represent the rarest form of epibulbar choristomas,¦with now 65 cases reported in the literature. We did a retrospective clinicopathological study¦of all patients with epibulbar osseous choristoma observed at our institution since 1982 and¦updated the last review of the literature.¦History and Signs:¦Three Caucasian male patients, aged between 3 months and 11 years,¦were identified. All osseous choristomas were located under the superotemporal bulbar¦conjunctiva of the right eye.¦Therapy and Outcome:¦All lesions were managed with surgical excision. Histopathology¦revealed the presence of lamellar bone in all cases, one of which was associated with a¦dermolipoma.¦Conclusions:¦We report a small rare case series of 3 epibulbar osseous choristomas and did a¦review of the literature. In one patient, the osteoma was associated with a dermolipoma,¦corresponding to the fourth reported complex choristoma of this type, in an otherwise normal¦eye, in the literature

    Traitement, à l'abattoir, des produits de triperie et de boyauderie : technologie

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    [Notes_IRSTEA]ann./bibl./sch.Cette étude traite successivement de la nature des produits de triperie et de boyauderie, des traitements dont ils font l'objet et du matériel utilisé pour ces traitements, puis des équipements et aménagements des locaux où s'effectuent leurs transformations

    Détection d’une cavité remplie de saumure par imagerie électrique

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    Dans le cadre des problématiques minières liées à l’exploitation du sel et aux vides abandonnés, le BRGM a réalisé une étude géophysique pour GEODERIS sur la concession saline d’Art-sur-Meurthe propriété de la société NOVACARB. L’objectif est d’expérimenter les potentialités de l’imagerie électrique 2D pour la mise en évidence de cavités pleines de saumures. La cavité LR45 de forme circulaire avec un diamètre de 90 m et une épaisseur de 7 m se trouve à 115 m de profondeur. Des modélisations préliminaires ont validé la démarche. Les mesures de résistivité ont mis en évidence une structure conductrice dont les caractéristiques sont en accord avec la géométrie connue de la cavité. Les mesures de polarisation provoquée ont détecté des niveaux polarisants dont l’origine reste à déterminer

    Epibulbar osseous choristoma: a clinicopathological case series and review of the literature [Epibulbäre knöcherne Choristome: eine klinisch-pathologische Fallserie und Überblick der Literatur]

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    BACKGROUND: Choristomas are benign, congenital tumours composed of normal tissue in an abnormal location. Osseous choristomas represent the rarest form of epibulbar choristomas, with now 65 cases reported in the literature. We did a retrospective clinicopathological study of all patients with epibulbar osseous choristoma observed at our institution since 1982 and updated the last review of the literature. HISTORY AND SIGNS: Three Caucasian male patients, aged between 3 months and 11 years, were identified. All osseous choristomas were located under the superotemporal bulbar conjunctiva of the right eye. THERAPY AND OUTCOME: All lesions were managed with surgical excision. Histopathology revealed the presence of lamellar bone in all cases, one of which was associated with a dermolipoma. CONCLUSIONS: We report a small rare case series of 3 epibulbar osseous choristomas and did a review of the literature. In one patient, the osteoma was associated with a dermolipoma, corresponding to the fourth reported complex choristoma of this type, in an otherwise normal eye, in the literature
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