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: Unknown
[{'content': "Figure of eight is seen in: \nSelect and explain. \nA. Total Anomalous Pulmonary' Venous Connection (TAPVC), B. Transposition of great arteries (TGA), C. TOF, D. Ebstein anomaly", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans: A (Total (TAPVC)) [Ref .'Radiology review manual by wolfgang Dahnert 5th/603-04; Chapman Radiology 4th/124.142TAPVRTAPVR = admixture lesion because of the combination of cyanosis + increased pulmonaiy vascularity (L-to R and R-to -L shunt)Age : symptomatic in 1st year of lifeTypeSupradiaphragmatic TAPVRH Sub- / Infradiaphragmatic TAPVRMixed Type of TAPVRRadiological featureDisorderCoear en sabot i.e. Boat shaped heardTOFEgg in cup appearanceConstrictive pericarditisEgg on side appearanceD-Transposition of great arteriesEgg shaped heart(D-TGA)Convex Left heart borderL-TGAStraight left upper cardiac borderEbstein AnomalyConcave main pulmonary segment segment & right aortic archPersistent Trunkus arteriosusSnowmann signTotal Anomalous PulmonaryFigure of 8 signVenous Connection (TAPVC)Cottage leaf sign", 'role': 'assistant'}]