For the Oskie position to occur the babys head must be far down the pelvis in order to allow room for leg extension, typically the arms are bent, tucked against the babys body. There are no known complications for labor and delivery. This presentation is rare and is not well researched. Reasons for predominance
The piriform (pear-shaped) morphology of the uterus has been given as the major cause for the finding that most singletons favor the cephalic presentation at term. The fundus is larger and thus a fetus will adapt its position so that the bulkier and more movable podalic pole makes use of it, while the head moves to the opposite site. Factors that influence this positioning include the gestational age (earlier in gestation breech presentations are more common as the head is relatively bigger), size of the head, malformations, amount of amniotic fluid, presence of multiple gestations, presence of tumors, and others. Two-thirds of all vertex presentations are LOA, possibly because of the asymmetry created by the descending colon that is on the left side of the pelvis. Diagnosis
Usually performing the Leopold maneuvers will demonstrate the presentation and possibly the position of the fetus. Ultrasound examination delivers the precise diagnosis and may indicate possible causes of a malpresentation. On vaginal examination, the leading part of the fetus becomes identifiable after the amniotic sac has been broken and the head is descending in the pelvis. Management
Many factors determine the optimal way to deliver a baby.
Several studies suggest that the presentation in people of African origin may be more severe and disseminated than for Caucasians, who are more likely to have asymptomatic disease.Manifestation appears to be slightly different according to race and sex. Erythema nodosum is far more common in men than in women and in Caucasians than in other races. In Japanese patients, ophthalmologic and cardiac involvement are more common than in other races.Sarcoidosis is one of the few pulmonary diseases with a higher prevalence in non-smokers. Notable cases
The American television personality and actress Karen Duffy wrote "Model Patient: My Life As an Incurable Wise-Ass" on her experiences with neurosarcoidosis. References


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