<prompt> Which of the most commonest organ involved in sarcoidosisLungLiverCNSEye  <response>: Presentation of sarcoidosis Asymptomatic: abnormal routine chest X-ray 30 or abnormal liver function tests Respiratory and constitutional symptoms 20-30 Erythema nodosum and ahralgia 20-30 Ocular symptoms 5-10 Skin sarcoid including lupus pernio 5 Superficial lymphadenopathy 5 Other 1, e.g. hypercalcaemia, diabetes insipidus, cranial nerve palsies, cardiac arrhythmias, nephrocalcinosis Lung involvement occurs in 90 of sarcoidosis patients Ref Harrison 19th edition pg 2206 