<prompt> Pink reflex through intact tympanic membrane in active otosclerosis is known asSchwabachs signSchwartz signLyres signChvosteks sign  <response>: Ans. is b i.e., Schwartz sign Schwartz sign is a pink reflex, seen through intact tympanic membrane, in the area of oval window. It indicates active otosclerosis usually during pregnancy. Lyres sign is splaying apart of internal and external carotid arteries on angiogram in cases of carotid body tumour of the neck. Chvosteks sign seen in hypocalcaemia as after total thyroidectomy where parathyroids have also been removed. Tapping over the distribution of facial nerve produces a twitch. 