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: Ophthalmology
[{'content': "A 30 year old male patient presented with anterior granulomatous uveitis, ahralgia and respiratory difficulties. Probable diagnosis is \nSelect and explain. \nA. Ocular sarcoidosis, B. TB, C. Behcet's syndrome, D. HLA B27 Uveitis", 'role': 'user'}, {'content': "Answer: A \nExplanation: A i.e. Ocular sarcoidosis - Bechet's syndrome and HLA B27 associated uveitis are ruled out as both are non granulomatous. Sarcoidosis may cause granulomatous pan-uveitis, periphlebitis (causing candle wax drippingsQ or en taches de bougie), pulmonary lesions (Vt progressive dyspnea, pulmonary HTN & cor pulmonary), skin lesions (erythema nodosum, lupus perniaQ granulomatous deposits), neuropathy, ahritis/ ahralgiaQ (typically symmetrical, involving both large & small joints), bone cysts & renal /liver / lymph node disease.", 'role': 'assistant'}]