<prompt> Lyre sign in seen inGraves diseaseMenieres diseaseLateral sinus thrombosisCarotid body tumour  <response>: Lyre sign is an angiographic finding seen in carotid body tumour of the neck. There is splaying apa of internal and external carotid aeries on angiogram. Ref: Diseases of Ear, Nose and Throat by P.L. Dhingra, 9th edition, p460. 