ENT Flashcards
(161 cards)
Cauliflower ear is seen in …..
Hematoma of auricle-boxers and wrestlers
Parts of tympanic membrane (2)
Pars tensa
Pars flaccida -shrapnel membrane
Nerve supply of tympanic membrane (2)
- Auriculotemporal nerve
- Auricular branch of vagus
Normal appearance of tympanic membrane
Pearly white membrane
Chalky white membrane is seen in ….
Tympanosclerosis
Narrowest part of middle ear
Location of mesotympanum …..
Mesotympanum
Directly medial to tympanic membrane
Location of tegmen/roof of tympanum
Opposite to middle cranial fossa
Bony labrynth is ………bone
Contents of peri lymph (2)
Cancellous bone
Resemble CSF
Low K+,low Ca, high sodium
Investigation of choice for malignant otitis externa
Gallium CT scan
Mastoid reservoir phenomenon is associated with ……
Serous otitis media is AKA (2)
ASOM
Secretory otitis media
Glue ear
Special features of serous otitis media (4)
- Marginal perforation
- B shaped tympanogram
- Medical Rx ineffective
- Insertion of tympanostomy tube +_ adenoidectomy
Location of perforation in CSOM (2)
Safe CSOM: central
Unsafe CSOM: marginal
Complications of CSOM (4)
- Mastoiditis -mc complications of CSOM
- Brain abscess
- Bezold’s abscess (SCM)
- Gradenigo syndrome
Define bezold’s abscess
Gradenigo syndrome (5)
SCM abscess
- Retro orbital pain
- Photophobia
- Lacrimation
- CN 5&6 I/L CN involvement
- Otitis media
Special feature of cholesteatoma (4)
- Bony erosion
- Apex of petrous temporal bone
- Attic/posterior -superior marginal region
- Modified radical mastoidectomy
Cholesteatoma is AKA (2)
Epidermosis
Keratoma
Modified radical mastectomy spares …(2)
Tympanic membrane and ossicles
Pathognomonic sign of lateral sinus thrombosis (2)
- Grinsinger sign -tenderness and edema over mastoid process
- Tobey-Ayer test
Radical mastoidectomy is done for ….
Otosclerosis begins in …..
Atticoantral cholesteatoma
Fissula antefenestrum
Mc site of otosclerosis
Oval window
Presenting feature of otosclerosis (3)
- Positive family history
- Progressive B/L conductive deafness
- Paraccusis willisii-ability to hear well in noisy environment.
Appearance of tympanic membrane in otosclerosis
Surgical procedure of choice for otosclerosis
Flamingo pink TM.
Stampedectomy + prosthesis
Use of sodium fluoride in otosclerosis
Ménière’s disease is AKA
Prevent progression
Endolymphatic hydrops
Triad of Ménière’s disease (3)
Hearing loss -low freq SN
Tinnitus-nonpulsatile
Recurrent prostrating vertigo