This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'Small size placenta is seen in ? \nSelect and explain. \nA. Peripheral vascular disease in mother, B. Pre eclampsia, C. Maternal weight < 50 Kg, D. Multiple pregnancy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'B' i.e., Pre eclampsiaSmall placenta on antenatal ultrasound USG may be due to :-Variation in placental morphology :Only post of placenta is seen.Bibbed placenta :Only one lobe is seen.Succenturiate lobe.Hypeensive states (pre-eclampsia, eclampsia)Chromosomal disorders :Trisomy 18, Dysgenic triploidy, IUGR or intrauterine infection", 'role': 'assistant'}]