<prompt> Carharts notch is seen inOtosclerosisAcoustic neuromaMeneirs diseaseCSOM  <response>: i.e. Otosclerosis: 99-Dhingra 5th Carharts notch - maximum at 2000 Hz or 2KHZ carharts notch disappears after successful stapedectomy in OTOSCLEROSIS Schwartze sign - flamingo-pink bluish tympanic membrane due to hyperaemia of the promontory and affords good evidence that the otosclerotic process is an active phase in OTOSCLEROSISOTOSCLEROSIS otospongiosis- Commonest site -fissula ante fenestram- Painless and progressive bilateral conductive deafness- Paracusis willisii hears better in noisy than quite surroundings- Tinnitus, vertigo, monotonous speech 