 |
| Home | Login |
|
|
|
|
|
|
Obstetric
Search Obstetric:
|
|
Pulmonary Sequestration This bronchopulmonary foregut malformation represents an ectopic, non-functioning portion of lung parenchyma which has its own specific blood supply but no bronchial connection with the lung. It exists in two forms: intralobar, indicating that it lies withi... Dr Romain Favre; Dr C Nimrod, G Ongaro Kingston RDMS 01 January 2001 Urachal Abnormalities The allantois develops as an outpouching of the portion of the yolk sac that eventually forms the cloaca. As the cloaca is formed the allantois is connected to the urogenital sinus through the urachus. The urachus extends from the umbilical cord to the urina... Dr Karen Filkins 01 January 2001 Unilateral Renal Agenesis Unilateral renal agenesis (URA) is absence of one kidney and usually the unilateral ureter. It occurs more commonly on the left than the right side and there is a male predominance of 1.8 to 1. It is usually asymptomatic since the other kidney frequently bec... Bridgit Bedard RDMS 01 January 2001 Umbilical Vein Varix An umbilical vein varix is a focal dilatation of the umbilical vein that usually involves the intra-abdominal portion of the umbilical cord. However, an umbilical vein varix of the intra-amniotic portion of the umbilical vein may also occur. Umbilical vein... 01 January 2001 Umbilical Cord Knot False knots of the umbilical cord are relatively common. They characteristically result from either focal outpouchings or varicosities of the umbilical vessels or exaggerated looping of the umbilical blood vessels. False knots are of no clinical significance... Dr Lyndon Hill 01 January 2001 Umbilical Cord Cyst There are several potential sources for an umbilical cord cyst. The allantois is an out-pouching of the yolk sac that is continuous with the urinary bladder. In reptiles and birds, urine is stored in the allantois during embryonic life. In the human the all... Dr Lyndon Hill 01 January 2001 Twin -Twin Transfusion Twin to twin transfusion complicates about 15% of monochorionic twin gestations and is responsible for 17% of the perinatal mortality in multiple pregnancies. If embryonic splitting occurs before day three post conception, two independent fetuses with separ... Philippe Jeanty MD PHD 01 January 2001 Twin-Reversed Arterial Perfusion (TRAP or Acardiac Twin) Twin-reversed arterial perfusion (TRAP) sequence is a rare condition (0.3:10,000 births) that occurs in monochorionic twin pregnancies, resulting in coexistence of a normal ‘pump’ twin and an acardiac ‘recipient’ twin. The proposed pathogenesis is the asso... Philippe Jeanty MD PHD 01 January 2001 Twin Embolisation Syndrome Twin embolisation syndrome is a complication of monozygotic twinning following in utero demise of the co-twin. It results from embolisation of placentary and fetal thromboplastins, direct embolization of necrosed placental fragments, disseminated intravascular... Philippe Jeanty MD PHD 01 January 2001 Turner Syndrome The prevalence of Turner syndrome is 1:2500 female births. Turner syndrome consists of approximately 2% of all conceptions and 20% of all miscarriages. Approximately 98-99% of the fetuses with this condition are spontaneously aborted, 75% are aborted between... Carol Kershman RDMS 01 January 2001
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
|
|
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. |
|
Contact ASUM
Feedback
Disclaimer
Developed by Pear Software
0.105 sec © 2004 Australasian Society for Ultrasound in Medicine |
|
