A woman in labor, P/V findings -sagittal suture obliquely placed, posterior fontanelle at 4 o’ clock position & the anterior fontanelle easily palpable. What is the most likely fetal presentation?
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fetal position diagnosis
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posterior fontanelle 4 o'clock anterior fontanelle palpable fetal presentation obstetrics
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This is a vertex (cephalic) presentation in right occipito-posterior (ROP) position, with a somewhat deflexed head.
- Posterior fontanelle at about 4 o'clock indicates the occiput is right posterior.
- Easy palpation of the anterior fontanelle suggests incomplete flexion, common in occipito-posterior positions.
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