Otology
Welcome to the Otology section of ENT!
This page offers comprehensive, exam-focused notes on all key topics related to the ear, tailored for MBBS and ENT students.
What is Otology?
Otology is the branch of ENT that deals with the structure, function, and diseases of the ear. It includes the study of the:
- External ear
- Middle ear
- Inner ear
- Vestibulocochlear nerve (CN VIII)
A solid understanding of otology is essential for evaluating and managing conditions such as Otitis externa, Otitis media, Hearing loss, Tinnitus, Vertigo, Cholesteatoma, Tympanic membrane perforations, and Otosclerosis.
Otology is also critical for interpreting audiological tests like pure tone audiometry, impedance audiometry, and BERA, and for performing microscopic ear surgeries.
Here you’ll find neatly organized notes on:
- Anatomy of Ear
- Auditory and vestibular physiology
- Embryology of Ear
- Diseases of Ear
- Diagnostic tests (tuning forks etc.)
- Audiology
- Surgeries of Ear (e.g., myringotomy, mastoidectomy)
- Clinical correlations
All notes are designed for fast revision and deep conceptual clarity.
Otology - ENT Notes & Lectures
Acute Necrotizing Otitis Media
Acute Otitis Media - Causes, Symptoms and Treatment
Anatomy of External Ear
Anatomy of Facial Nerve
Anatomy of Facial Nerve – Branches
Anatomy of Facial Nerve – Functional Components
Anatomy of Facial Nerve – Nuclei & Course
Anatomy of Inner Ear
Anatomy of Middle Ear - Contents
Anatomy of Middle Ear - Walls & Parts
Anatomy of Tympanic Membrane
Cholesteatoma
Chronic Suppurative Otitis Media (CSOM)
Complications of Acute Otitis Media
How to Draw a Normal Tympanic Membrane
How to Draw Tympanic Membrane Perforations
Inner Ear fluids - Perilymph and Endolymph
Landmarks of Facial Nerve in Mastoid and Parotid surgeries
Malignant Otitis Externa (Skull Base Osteomyelitis)
Organ of Corti – Anatomy, Structure and Clinical Relevance
Referred Pain in the Ear
Sade Classification - Pars Tensa Retraction
Tos Classification - Pars Flaccida Retraction
Tympanoplasty Part 1 - Definition, Types, Grafts, Indications, Contraindications
Tympanoplasty Part 2 - Approaches, Techniques, Steps & Complications
Types of Tympanoplasty - Wullstein Classification