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Obstetric
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Cystic Adenomatoid Malformation This disorder represents a dissociation between the development of the conducting airways and the respiratory component of the lungs. The bronchial tree is endodermal in origin while the distal portion of the lung is of mesodermal origin andŠan overgrowth o... Shirley Soini RDMS 01 January 2001 Dandy-Walker Malformation Normal development of the rhombencephalon (hindbrain) is essential for the emergence of the pons, cerebellum (via the metencephalon) and medulla (via the myelencephalon) and their related cavity, the fourth ventricle. Arrest of this process has been proposed t... Dr Karl Gloning; Lynn Slavador RDMS RDCS 01 January 2001 Dextrocardia This simply means that the heart lies in the right chest and can have a variety of causes. The outlook will depend on the underlying cause. There is either complete inversion of the thoracic and abdominal organs or the inversion can be confined to the heart.... Dr Lindsey Allan 01 January 2001 Diagphragmatic Eventration Congenital eventration of the diaphragm may be partial or complete and is due to aplasia of a portion of the muscle of the diaphragm. This gives rise to an abnormal elevation of all or part of its structure. As a result intra-abdominal contents are displaced... 01 January 2001 Diaphragmatic Hernia The development of the diaphragm involves the fusion of 3 principal components: the transverse septum, the dorsal mesentery and the pleuroperitoneal folds and is completed by the end of the tenth week. The transverse septum grows backwards to meet the dorsa... Dr Paul Chamberlain 01 January 2001 Diastematomyelia Diastematomyelia (Greek: diastema = interval, myelos = marrow), also known as diplomyelia, is a rare congenital defect in which the spinal cord is split by a fibrocartilaginous or osseous septum, each half being enclosed by a dural sac. This process fixes the... Dr RJ Benzie; Carole Chenier RDMS 01 January 2001 Discordant Atrioventricular (AV) Connection with Absent Left Connection In this rare defect, the atrial chambers are normally positioned but the left-sided (posterior) atrioventricular valve is atretic. The right atrium is discordantly connected through a mitral valve to a morphological left ventricle, which then gives rise to... Professor Lindsey Allan 01 January 2001 Discordant Atrioventricular (AV) Connection with Discordant VA Connection In this condition, the morphological right atrium is usually situated in the normal position but is connected to the morphological left ventricle, which in turn gives rise to the pulmonary artery. The morphological left atrium is connected to the morphological... Dr Gurleen Sharland 01 January 2001 Discordant Twins Twin growth discordance is the inter-twin discrepancy in the sonographic estimated fetal weight greater than 20%. In general it is caused by placental insufficiency resulting in growth restriction of one twin. Genetic and structural anomalies must also be excl... 01 January 2001 Dolichocephaly Dolichocephaly is a long keel-shaped skull with prominent forehead and occiput. It may be associated with craniosynostosis of the sagittal suture; it may be commonly seen in the premature infant and is more frequently a normal variant. It is more common in... Lynn Salvador RDMS, RDCS 01 January 2001
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The ASUM Online Clinical Handbook is presented as an educational aid for experienced practitioners. It is the responsibility of the individual practitioner to determine how the information should be applied to individual cases. |
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