nose Flashcards
__part of nose is bony and __ is cartilaginous
upper 1/3 rd bony
lower 2/ 3 cartilagenous
shape of septal cartilage is ??
quadrilateral
vidian neurectomy improve the symptoms in
vasomotor rhinitis
part bw 2 nasal vestibules is called as
columella
osseocartilagenous junction on dorsum of nose is ?
rhinion
sensory epithelium from nose is derived from
neural tube
boundaries of internal nasal valve are
laterally limen nasi and inf turbinate medially nasal septum and inferiorly floor by pyriform aperture
imp of nasal valve
area of greatest constriction of respiratory tract
patency of nasal valve is checked by ?
cottle test
schneiderian membrane is lines ?
lower 2/3 rd of nasal cavity and upper1/3 rd is lined by olfactory epithelium
largest turbinate is
inferior turbinate
largest meatus is ?
inferior meatus
nasolacrimal duct opens in
inferior meatus
nasolacrimal duct is closed by
hasner duct
wht opens into middle meatus
opening of anterior grp of sinus which r maxillary sinus , frontal sinus ,and anterior ethmoidal
wht is agger nasi
curved ridge above atrium is called agger nasi it may get pneumatised from ethmoid is k/a agger nasi cell
bulla ethmoidalis represents which part of bone
middle ethmoidal air cells
which is sickel shaped bone behind middle meatus
uncinate process
wht opens into superior meatus
posterior ethmoidal cells
sphenoethmoidal recess opens into
superior meatus
name anterior ethmoidal cells
•bulla ethmoidalis •agger nasi
•haler cells
cells in floor of orbit
name posterior ethmoidal cells
onodi cells most post ethmoidal air cells related to optic nerve and int carotid artery
septum proper is formed from
•septal cartilage/quadrilateral cartilage •perpendicular plate of ethmoid •vomer #other bony contributors are •nasal spine of frontal bone •crest of Palatine bone •crest of maxilla •rostrum of sphenoid
littles area is formed from
L labial artery
E ant ethmoidal a
G greater Palatine
S sphenopalatine a
unicinate process is part of which bone
ethmoid bone
meatus r part of which bone
superior and middle turbinate r part of ethmoidal bone and inf meatus is itself a separate bone
nasal cycle is cyclical alternste nasal blockage occurring every
2-4hrs
parosmia
perversion of smell
structures seen on posterior rhinoscopy
- both chonae •post end of nasal septum •opening of eustachian tube
- posterior end of sup/middle and inf turbinates
- fossa of rosenmuller •torus tubaris
- adenoids
- roof and posterior wall of nasopharynx
IOC for paranasal sinus is
CT scan
where is sphenopalatine foramen
post end of middle turbinate points to opening of sphenopalatine foramen
it is a communication bw nadal cavity and pterygopalatibe fossa
structures passing through sphenopalatine foramen
maxillary nerve 2 branches
• nasopalatine br
•sup nasal br
• sphenopalatine br of maxillary artery
ext nose is formed from number of cartilages
3 paired +1 unpaired •paired upper lateral
•paired lower nasal
•lesser alar cartilage • unpaired septal cartilage
direction of nasolacrimal duct
downwards backwards
laterally
cause of saddle nose
H hematoma O operative T trauma (most common) S syphilis A abscess L Leprosy T tuberculosis
mcc of saddle nose
nasal trauma
crooked nose
dorsum is deviated but tip in midline
deviated nose is ?
dorsum and tip are straight but deviated to one side
chonal atresia is due to persistent which membrane?
bucconasal membrane
rht is more common than left
choanal ateresia is associated with which syndrome
C coloboma H heart defects A atresia of choana R retarted growth G genital anomalies E ear anomalies
Rhinophyma is due to
hypertrophy of sebaceous glands
they r holocrine glands
seen in long standing cases of acne rosea
mc malignant tumor of nose
bcc
frustenberg test is
it is for nasal encephalocele ie on bilateral compression of int jugular vein leads to inc in size of mass
IOC for nasal encephalocele
MRI
BIOPSY IS C/I
diffren ence between nasal glioma and encephalocele
nasal glioma is detached encephalocele thus it non compressible
and frustenberg test negative
which is preferred septoplasty or smr
septoplasty as it is conservative
can septal surgery be done before 17 yrs
no it should be done after 17 to allow growth of nasal skeleton
killians incision is for
smr given 1.25 cm behind columella
freers incision is for
for septoplasty
which ds causes perforation of bony part of septum
syphilis
which ds causes perforation of cartilaginous part
lupus tb
leprosy
which procedure is helpful in dx of choanal atresia
passing red rubber catheter
breath sounds by stethoscope endoscopy of nose
acoustic rhinometery
wht is required to prevent synechiae
after nasal surgery
mitomycin
is fess c/i below 12 yrs
no
which sinus is not effected by dns
sphenoid sinus
whole septum is perforatedby which ds
wegner granulomatosis
sluders neuralgia
ant ethmoidal syndrome it is pain around bridge of nose radiating to forehead it is said to originate
from middle turbinate
it is also ka contact point headache
mc site for nasal hemangioma
nasal tip
mc site for lupus vulgaris of nose
mucocutaneus junction of nasal septum
apple jelly nodules are characteristic of ??
lupus vulgaris
mikulciz ds is another name of
rhinoscleroma
cause of rhinoscleroma is
klebsiella rhinoscleromatis
stages of rhinoscleroma
1 atrophic stage resembles atophic rhinitis 2. granulomatous stage proliferative ds characterized by pressence of mikulicz cells subdermal woody feel there is broadnening of nose due to thickening of skin with characteristic hebra nose 3.Cicatericial stage adhesions ,stenosis leading to formation of taper nose
biosy finding of rhinoscleroma
russels cells
mikuliz cells
a 42 yr man comes with foul smelling nasal discharge and crusting on examination there are painless nodules in nasal mucosa and there is woody feel over nose wht is likely to found on biopsy
it is a typical case of rhinoscleroma on biopsy there will be characteristic russel and mikulicz cells
tapir nose is seen in
rhinoscleroma
rhinoscleroma 5 imp words
klebsiella rhinoscleroma russel and mikulicz cells 3 stages woody feel hebra nose taper nose
causative agent of rhinosporidiosis
rhinosporidium seeberi a protozoan
most common mode of affection of rhinosporidiosis
contaminated water of pond
common in farmers and peopke bathing in ponds
35 yr old farmer presents with pink colored polypoidal mass in nasal cavity which bleeds on touch it is studded with white dots pt also complains of blood stained nasal discharge
wht is treatment
classic case of rhinosporidiosis
biopsy will reveal multiple several sporangia and spores
treatment is endoscopic excision followed by cauterization of its base
medical management is with dapsone
inj is with corticosteroids and amphotericin
most commonest fungal infection of nose is
aspergillosis
causative organisms of aspergillosis
aspergillus fumigatus
mucormycosis is different from other fungal inf how
it has a great predilection for blood vessel and arteries leading to extensive endothelial damage and thrombosis leading to black necrotic nass filling entire cavity
killians polyp is another name of
antrochoanal polyp
antrochoanal polyp effects which age group
children and young adults
most common site of ethmoid polyp arise
ethmoid sinus
antrochoanal polyp arise from
maxillary antrum
age grp having ethmoidal polyp
30-60 yrs older adults
cause of ethmoidal polyp
allergy
cause of antrochoanal polyp
allergy + infection
which polyps are unilateral
and bilateral
unilateral are antrochoanal polyp and bilateral are ethmoidal polyp
are antrochoanal polyp seen on ant rhinoscopy
no they r posterior so visalused on post rhinoscopy
IOC for nasal polyp is
NCCT
TOC FOR nasal polyp are
FESS
samter triad include
asthma
aspirin intolerance nasal polyp
multiple nasal polyp is associated with ___
mucoviscidosis
unilateral foul smelling discharge in a child is pathognomic of
foreign body
recurrent polyps are
ethmoidal polyp
midline non healing granuloma of nose are
wegners granuloma stewarts granuloma stewarts granuloma is called lethal midline granuloma
wht is stewarts granuloma
it us ka lethal midline granuloma
or midfacial lymphonait ulcerates nasal cartilage and bone it is strongly associated with ebv
type of syphilis effects nose
tertiary
mulberry like nasal muc osa
is seen in
hypertrophy rhinitis
cause of atrophic rhinitis
klebsiella ozanae
cause of
a atrophic rhinitis
H hereditary E endocrinal estrogen deficiency R racial factors N nutritional I infective autoimmunei..