Macewen's triangle: Macewen's triangle is the most important surgical landmark for the mastoid antrum or the largest mastoid air cell.
Ototoxicity: The tendency of certain therapeutic agents to cause functional impairment and cellular degeneration of the end-organs and neurons of the cochlear and vestibular division of the VIIIth cranial nerve is called ototoxicity.
Meniere's disease :In 1861 Prosper Meniere described a condition characterized by sudden recurring episodes of vertigo, nausea, vomiting and fluctuating hearing loss.This is called Meniere’s Disease.
Dr. Y. P. Singh practices at Avadh Hospital & Heart Center in almabagh Lucknow, Sharda Medical Store at Hind Nagar Near Purani Chugi and National Pharmacy at Telibagh, Lucknow. He has completed MBBS from G.S.V.M. Medical College, Kanpur, and MS-ENT from King Georges Medical College, Lucknow University, and did his senoir residency and also working as assistant professor and HOD in Saraswati Medical College.