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      Dipygus: Reporte de un caso

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          Abstract

          Se reporta caso de paciente de 31 años de edad (II gesta, I para), con embarazo no controlado, quien acude a la emergencia del Departamento Obstétrico del Hospital Universitario de Maracaibo, Maternidad "Dr. Armando Castillo Plaza", con embarazo de 40 semanas, presentación podálica y trabajo de parto. Se realiza cesárea segmentaria, obteniéndose recién nacido vivo, femenino. Peso: 4 200 g, Talla: 53 cm. El examen físico mostró anomalías múltiples en cintura pélvica caracterizadas por duplicación de miembros inferiores, articulados en número de 3. Actualmente se encuentra en condiciones clínicas estables. Se le realizó desarticulación de los miembros adicionales y se encuentra en espera de estudios complementarios a fin de elaborar una prótesis funcional para su caso.

          Translated abstract

          Case is reported of patient of 31 years of age (gravida II, para I), with not controlled pregnancy who went to the emergency of the Obstetric Department of the University Hospital of Maracaibo, Maternity "Dr. Armando Castillo Plaza" with pregnancy of 40 weeks, breech presentation and labor. A cesarean section was performed, obtaining a live female newborn. Weight: 4 200 g. Height: 53 cm. The newborn physical examination showed multiple anomalies in pelvic waist characterized by duplication of legs, articulated in number of 3. At the moment she was under stable clinical conditions. A separation of the abnormal members was carried out, and she is waiting for complementary studies in order to elaborate a functional prosthesis for her case

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          Most cited references26

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          Conjoined twins: theoretical embryologic basis.

          A theoretical basis for the embryology of conjoined twins was formulated from clinical experience with ten cases and extensive review of pertinent embryologic and clinical literature, including over 500 cases. Regarding the age old question of fusion or fission, it is concluded that there is no known embryologic process by which conjoined twins can be formed by fission but firm evidence to support fusion in all cases. Whether the fusion occurs between embryos on one embryonic disc or on two is of no consequence since they are all monovular. Intact ectoderm will not fuse to intact ectoderm, and all seven types of conjoined twins are explained by seven possible sites of union in the early embryo. One new term is proposed: parapagus, from the Greek para, meaning "side," combined with pagus, meaning "fixed"; this is the group formerly called dicephalus or diprosopos. These anterolaterally united parapagus twins must result from two nearly parallel notochords in close proximity; craniopagi and pygopagi from fusion at the cranial and caudal neuropores, respectively; cephalopagi and ischiopagi from union at the pharyngeal and cloacal membranes, respectively; thoracopagi from merging of the cardiac anlage; and omphalopagi from fusion of the umbilicus or of the edges of two embryonic discs in any area not including the above sites. Parasitic twins result from embryonic death of one twin, leaving various portions of the body vascularized by the surviving autosite. The rarity of cases (2) not easily explained by the above theories, and the nearly 6% of twins with two umbilical cords arising from the placenta would seem to support these conclusions. Should one wish to learn the methods of a conjurer, he might vainly watch the latter's customary repertoire, and, so long as everything went smoothly, might never obtain a clue to the mysterious performance, baffled by the precision of the manipulations and the complexity of the apparatus; if, however, a single error were made in any part or if a single deviation from the customary method should force the manipulator along an unaccustomed path, it would give the investigator an opportunity to obtain a part or the whole of the secret.(ABSTRACT TRUNCATED AT 400 WORDS)
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            Ultrasonografia y clínica embrio-fetal.

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              Ultrasonografía y Clínica Embrio Fetal

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                og
                Revista de Obstetricia y Ginecología de Venezuela
                Rev Obstet Ginecol Venez
                Sociedad de Obstetricia y Ginecología de Venezuela (Caracas )
                0048-7732
                January 2004
                : 64
                : 1
                : 39-43
                Affiliations
                [1 ] Maternidad  Dr. Armando Castillo Plaza
                Article
                S0048-77322004000100006
                4bae4a9c-3e93-49b3-9783-ef6cee7658a3

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Venezuela

                Self URI (journal page): http://www.scielo.org.ve/scielo.php?script=sci_serial&pid=0048-7732&lng=en
                Categories
                OBSTETRICS & GYNECOLOGY

                Obstetrics & Gynecology
                Incomplete duplicate,Organs duplication,Conjoined twins,Dipygus,Gemelos fusionados,Duplicación de órganos,Duplicata incompleta

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