The nasopharynx is the uppermost part of the pharynx located behind the nasal cavities. It is approximately 4cm in length and width. The nasopharynx extends from the base of the skull to the soft palate. Lymphatic drainage of the nasopharynx occurs through the lateral retropharyngeal lymph nodes and upper deep cervical nodes. Several important structures pass through or are located within the nasopharynx, including the Eustachian tube, levator veli palatini muscle, ascending palatine artery, Passavant's ridge, nasopharyngeal tonsil, tubal tonsil, nasopharyngeal bursa, and Rathke's p

1. Surgical Anatomy
of
NASOPHARYNX
Debashis Nanda
14BM0024
💣

3. PHARYNX
 NASOPHARYNX
 OROPHARYNX
 HYPOPHARYNX

7. NASOPHARYNX
It is the uppermost part of the pharynx.
Lies behind the nasal cavities.
Length=4cm=Width
Extension
Base of skull Soft Palate

8. 1.
Transition headline
Let’s start with the first set of slides

9. Lympharic Drainage
• Lateral retropharyngeal lymphnodes a/k/a Nodes
of Rouviere,are the first nodes in the lymphatic
drainage of nasopharnx.
• Upper deep cervical nodes through
retropharyngeal & parapharyngeal LN.
• Spinal accessory chain of nodes in the post.
• Ipsilateral or contralateral.

10. Sinus of morgagni
•Lies b/w the base of the skull and
upper free border of superior
constrictor.
Following structures pass through this
space.
• Eustachian tube
• Levator veli palatini muscle
• Ascending palatine artery

11. Passavant’s Ridge
▪ Mucosoal ridge.
▪ Encircles the post. & ant.
Wall of nasopharyngeal
isthmus.
▪ Raised by
palatopharyngeus muscle.
 When soft palate contracts
during deglutition or speech,
it makes firm contact with
passavant’s ridge and cuts
off nasopharynx from
oropharynx.

12. Nasopharyngeal Tonsil
 Sub-epithelial collection of
lymphoid tissue
 At the junction of roof and
poaterior wall of nasopharynx.
 Increases in size upto the age of
6 years and then gradually
atrophies
Tubal tonsil
 Collection of sub-epithelial lymphoid tissue
situated at the tubal elevation.
 Forms a part of the waldeyer’s ring.
 When enlarged due to infection,it causes
eustachian tube occlusion.

13. Nasopharyngeal Bursa
 Epithelial lined median recess found within the adenoid mass.
 Extends from pharyngeal mucosa to the periosteum of the basiocciput.
 Represemts the attatchment of notochord to the pharyngeal endoderm during embryonic life.
 When infected, it may be the cause of persistent post nasal discharge or crusting.
 Sometimes an abscess can form in the bursa- Thornwaldt’s disease.
Rathke’s Pouch
Represented clinically by a dimple
above the adenoids.

14. Surgical Approaches
 Transpalatal
 Sub-labial mid-facial degloving
 Lateral rhinotomy
 Trans-facial maxillary swing
 Mandibular swing
 Infratemporal
 transnasal-maxillary

15. THANKS!Any questions?
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