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': 'A 3 year old male presents with a sudden onset visual loss in left eye. Ophthalmological examination reveals strabismus and white pupillary reflex. Fundus finding is shown below.What is your diagnosis? \nSelect and explain. \nA. Retinoblastoma, B. Sickle cell retinopathy, C. Toxoplasmosis, D. Coats disease', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The clinical history along with fundus finding of telangiectatic vessels and hard exudates points towards a diagnosis of Coats disease. Coats disease\nIdiopathic non-hereditary,retinal telangiectasia.\nAge group-1st decade of life (average 5 years)\nClinical features-Unilateral visual loss,strabismus,leukokoria.\nIt is characterised by retinal angiomas and massive subretinal exudation from the angiomas.This exudation produces retinal detachment.Cataract and angle closure glaucoma may also occur in late stages.', 'role': 'assistant'}]