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![definition
Cyst which are not related to the
odontogenic apparatus
Grouped under
Developmental non odontogenic
cyst [all cyst are true cyst[]
Inflammatory non odontogenic cyst
[few pseudo cyst]](https://image.slidesharecdn.com/mucocele-230210215728-cd49ec3a/75/mucocele-pptx-2-2048.jpg)
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mucocele.pptx
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- 2. definition Cyst which arenot related to the odontogenic apparatus Grouped under Developmental non odontogenic cyst [all cyst are true cyst[] Inflammatory non odontogenic cyst [few pseudo cyst]
- 3. Inflammatory non odontogeniccyst They are lined by epithelium derived from odontogenic epithelium associated with tooth development .salivary cysts Mucous extravasation cyst Ranula Mucous retention cyst
- 4. MUCOCELE -cystic lesion developin salivary gland called mucocele These lesion develop in mostly minor salivary gland and rarely major salivary gland Mucocele are two type Mucous extravasation cyst -mucous retention cyst
- 5. Mucous extravasation phenomena -Alsocalled mucous escape phenomena -mucous extravasation phenomena are common oral lession caused by traumatic rupture of minor salivary gland duct,release of mucous into adjacent connective tissue
- 6. Etiology Are common orallesion caused by traumatic rupture of minor salivary gland duct, causing release of mucous into adjacent connective tissue. Cause; Biting of lip and cheek Pinching of lip by extraction forceps
- 7. Clinical feature -mostcommon in first three decades of life Male and female equally affected Lower lip is most affected area Buccal mucosa>floor of mouth>ventral tongue>palate Mucocele of upper lip are uncommon Superficial mass show blueish translucent appearance Deep mass show appear as a soft fluctuant submucosal nodules with normal mucosa colour
- 9. histopathology - Circumscribed cavitywith in a connective tissue - Distended epithelium - Mucin is walled off by a rim of granulation tissue - Cavity is not lined by epithelium – false cyst - Mucin appears basophilic - Numerous amount of inflammatory cell neutrophils forms of histocytes - The duct which supply scretion to the cavity called feeder duct
- 12. TREATMENT Excision with removal ofassociated minor salivary glands to minimize the chance of reccurence. Avoid injury to other glands during primary wound closure
- 13. MUCUS RETENTION CYST are alsocalled retention phenomena/retention mucocele - Swelling caused by an obstruction of a salivary gland causes retension of saliva within the duct and ductal dilation without repture
- 14. ETIOLOGY Mucous retention cystdevelop partial and totally obstruction of minor salivary duct by salivary calculus an rarely major salivary gland which lead to accumalation of saliva within gland /within the duct More fluid accumalation cause the increse the pressure in gland itself in duct which cause the swelling
- 15. CLINICAL FEATURE - Majorsalivary gland – parotid is most commonly involved - Floor of the mouth >buccal mucosa >lower lip - Clinically mucocele and mucus retention cyst are indistinguisable - Common in adult and old age - Painless cystic, fluctuant and superficial
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- 17. H/F - Mucous retensioncyst histologically present in small cystic cavity which is filled by mucous and lined by flatted cuboidal and columnar epithelium cell of salivary gland duct
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- 20. MUCOUS EXTRAVASATION CYST -Extravasation cyst due to repture of salivary gland duct - Due to spillage of saliva in the connective tissue - More among the children - It has a false cyst MUCOUS RETENSION CYST - Mucous retension cyst due to obtruction to the duct in minor salivary gland - It result accumation of saliva in either in glad and duct. - Mucous retension cyst most common in adult - Mucous retension cyst are true cyst.
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