Nasolabial cyst

This presentation discuss

1. Nasolabial cyst
Dr T Balasubramanian

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Synonyms
Klestad't cyst
Non odontogenic cyst
Epithelial inclusion cyst
Fissural cyst

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Characteristics
Common in females
Always extraosseous in its occurrence
Constantly located under ala nasi
Asymptomatic
No dental displacement

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History
1882 Zukerland first described this entity. He
coined the term nasolabial cyst
1913 Klestadt first proposed the inclusion theory
as the cause for nasolabial cyst
1982 Brown Kelly described histological features
of nasolabial cyst

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Clinical features
Swelling over face in
the nasolabial region
Same swelling over
floor of the nose
Asymptomatic
Unilateral nasal block
Rarely pain (infection)

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Histology
Nasolabial cyst is a soft tissue mass with
epithelial lining filled with fluid
It originates from non odontogenic epithelium
Lining epithelium can be pseudostratified
columnar, cuboidal epithelium or stratified
squamous epithelium

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Theories of nasolabial cyst
Theory I :This theory supposes that nasolabial
cyst arises from entrapped nasolacrimal tissue
Klestadt theory: This theory proposes that these
cysts arise form entrapped tissue within naso
labial fissures. Hence he coined the term
fissural cyst

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Imaging
Coronal CT nose and
pns showing
nasolabial cyst
Anterior cut reveals the
cyst
Note the non
displacement of
upper dentition

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Surgery
Nasolabial cysts are
ideally treated by
surgery
Sublabial approach

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Surgical steps
Infiltration

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Incision
Sublabial incision
Care should be taken
not to rupture the cyst
Use of 15 blade is ideal

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Cyst exposure

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Cyst could rupture like this

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Cyst excision

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Post excision cavity

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Wound closure with catgut

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Thank you