Seminar slide Non-Odontogenic-cysts-VI.pptx

Important seminar based in dental op, oral pathology department and Important seminar based in dental op, oral pathology department and
Important seminar based in dental op, oral pathology department and

1. Dept. of Oral Pathology& Microbiology CYSTS OF NONODONTOGENIC ORIGIN-VI

2. Purpose Statement At the end of lecture student should describe Clinical features,Pathogenesis , Radiological features,Histopathological features & t/t of – Incisive canal cyst, Stafne cyst, Traumatic bone cyst, Surgical Ciliated Cyst (of Maxilla) Nasolabial cyst

3. Learning Objectives S.N. Learning Objectives Domain Level Criteria Condition 1 Enumerate clinical features Cognitive Must Know All 2 Write classification Cognitive Must Know All 3 Write pathogenesis Cognitive Must Know All 4 Write radiographic features Cognitive Must Know All 5 Write histologic features Cognitive Must Know All 6 Enumerate differential diagnosis Cognitive Nice to Know All 7 Write treatment & prognosis Cognitive & Psychomotor Must Know All

4. Contents Non- odontogenic cysts Nasopalatine duct cyst Stafne bone cyst Traumatic bone cyst Surgical ciliated cyst Nasolabial cyst Dermoid and eidermoid cyst Thyroglossal duct cyst Oral lymphoepithelial cyst Branchial cleft cyst

5. Median palatal cyst Median mandibular cyst Epidermoid cyst Dermoid cyst Thyroglossal duct cyst Branchial cleft cyst (cervical lymphoepithelial cyst) Oral lymphoepithelial cyst

6. Nonodontogenic Cysts Incisive Canal Cyst Stafne Bone Cyst Traumatic Bone Cyst Surgical Ciliated Cyst (of Maxilla) Nasolabial cyst Median palatal cyst Median mandibular cyst Epidermoid cyst Dermoid cyst Thyroglossal duct cyst Branchial cleft cyst (cervical lymphoepithelial cyst) Oral lymphoepithelial cyst

7. Nasopalatine duct Cyst/ Incisive Canal Cyst Most common non-odontogenic cyst Derived from epithelial remnants of the nasopalatine duct (incisive canal) 4 th to 6 th decades

8. Clinical features Palatal swelling in the anterior region Drainage & pain Sometimes asymptomatic

9. Radiographic Features Well-delineated oval (pear shaped) radiolucency between maxillary incisors with sclerotic borders Root resorption occasional

10. Histopathology Cyst lined by stratified squamous or respiratory epithelium or both

11. Treatment Surgical enucleation

12. Stafne Bone Cyst Incidental finding, not a true cyst Due to inclusion of glandular tissue adjacent to lingual surface of the body of mandible

13. Radiographic Features Small, circular or Ovoid radiolucency between mandibular canal and inferior border of mandible in the molar region Should be differentiated from traumatic bone cyst

14. Histology – normal salivary tissue Treatment – routine follow up

15. Traumatic Bone Cyst Empty or fluid filled cavity associated with jaw trauma (50%) Histology – Thin membrane of fibrous granulation tissue Treatment – exploratory surgery may expedite healing

16. Radiographic Features Radiolucency, most commonly in body or anterior portion of mandible

17. Surgical Ciliated Cyst May occur following Caldwell-Luc Trapped fragments of sinus epithelium that undergo benign proliferation Radiographic findings Unilocular radiolucency in maxilla Histology Lining of pseudostratified ciliated columnar epithelium Treatment - enucleation

18. Histopathology

19. Nasolabial cyst/ Nasoalveolar cyst Swelling of upper lip lateral to midline Elevation of ala of nose

20. Dermoid cyst

21. Epidermoid cyst

22. Histopathology

23. Thyroglossal duct cyst

24. Oral lymphoepithelial cyst

25. histopathology

26. Branchial cleft cyst (cervical lymphoepithelial cyst)

27. SUMMARY Clinical features,Pathogenesis , Radiological features,Histopathological features & t/t of – Incisive canal cyst, Stafne cyst, Traumatic bone cyst, Surgical Ciliated Cyst (of Maxilla) Nasolabial cyst Median palatal cyst Median mandibular cyst Epidermoid cyst Dermoid cyst Thyroglossal duct cyst Branchial cleft cyst (cervical lymphoepithelial cyst) Oral lymphoepithelial cyst

28. BIBLIOGRAPHY Text book of oral pathology Shafer's, 5 & 6 th edition Cysts of the Oral Regions Shear M 3 rd edition Color Atlas of Oral Diseases Cawson, R. 2 nd edition Oral and Maxillofacial Pathology Neville, Brad W. 2 nd Lucas’s Pathology Of Tumor’s of the Oral Tissues Cawson, R. A., Bennie, W. H 5 th edition

29. THANK U