Nasolabial cyst
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Transcript of Nasolabial cyst
Nasolabial cyst
Dr T Balasubramanian
Synonyms
Klestad't cyst
Non odontogenic cyst
Epithelial inclusion cyst
Fissural cyst
Characteristics
Common in females
Always extraosseous in its occurrence
Constantly located under ala nasi
Asymptomatic
No dental displacement
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
Clinical features
Swelling over face in the nasolabial region
Same swelling over floor of the nose
Asymptomatic
Unilateral nasal block
Rarely pain (infection)
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
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
Imaging
Coronal CT nose and pns showing nasolabial cyst
Anterior cut reveals the cyst
Note the non displacement of upper dentition
Surgery
Nasolabial cysts are ideally treated by surgery
Sublabial approach
Surgical steps
Infiltration
Incision
Sublabial incision
Care should be taken not to rupture the cyst
Use of 15 blade is ideal
Cyst exposure
Cyst could rupture like this
Cyst excision
Post excision cavity
Wound closure with catgut
Thank you
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