Developmental cysts and syndroms

Developmental cysts and syndroms

1. Nasopalatine duct cyst. Fluctuant swelling of the anterior hard palate.

2. Cyst of the incisive papilla. Swelling of the incisive papilla .

3. Nasopalatine duct cyst . Well-circumscribed radiolucency between and apical to the roots of the maxillary central incisors.

4. Nasopalatine duct cyst . Well-circumscribed radiolucency between and apical to the roots of the maxillary central incisors.

5. Nasopalatine duct cyst . large destructive cyst of the palate.

6. Nasopalatine duct cyst. Cystic lining showing transition from pseudostratifled columnar to stratified squamous epithelium.

7. Nasopalatine duct cyst. Flattened cuboidal epithelial lining.

8. Nasopalatine duct cyst. Cyst wall showing blood vessels, nerve bundles, and minor salivary glands.

9. Oral lymphoepithelial cyst. Small yellowish-white nodule of the tonsillar fossa .

10. Oral lymphoepithelial cyst. Small white nodule of the posterior lateral border of the tongue .

11. Oral lymphoepithelial cyst. A. low-power view showing a keratin -filled cyst below the mucosal surface. lymphoid tissue is present in the cyst wall. B. High-power view showing lymphoid tissue adjacent to the cystic lining.

12. Cervical lymphoepithelial cyst. Fluctuant swelling of the lateral neck.

13. Cervicallymphoepithelial cyst.Medium -powered view showing a cyst lined by stratified squamous epithelium. Note the lymphoid tissue in the cyst wall.

14. Thyroglossal duct cyst. Swelling (arrow) of the anterior midline of the neck.

15. Thyroglossal duct cyst . Cyst (top) lined by stratified squamous epithelium. Thyroid follicles can be seen in the cyst wall (bottom).

16. Dermoid cyst. Fluctuant midline swelling in the floor ofthe mouth.

17. Dermoid cyst. Squamous epithelia l lining (top). with hair follicle (F) and sebaceous glands (s) in the cyst wall.

18. Epidermoid cyst . Fluctuant nodule at the lateral edge of the eyebrow.

19. Epidermoid cyst. Infant with a mass in the upper lip.

20. Epidermoid cyst. A. l ow -power view showing a keratin-filled cystic cavity. B, Highpowered view showing stratified squamous epithelial lining with orthokeratin production.

21. Globulomaxillary cyst. " Inverted pear-shaped radiolucency (arrow) between the maxillary right cuspid and the lateral incisor. Biopsy revealed a periapical cyst.

22. Epstein'spearl s. Small keratin -filled cysts at the junction of the hard and soft palates.

23. Nasolabia l cyst . A. Enlargement of the left upper lip with elevation of the ala of the nose. B. Intraoral swelling fills the maxillary labial fold.

24. Nasolabial cyst . Pseudostratified columnar epithelial lining.

25. Median palatal cyst. Well-circumscribed radiolucency apical to the maxillary incisors in th e midline. At surgery th e lesion was unrelated to the incisive canal.

26. Hemihyperplasia . Enlargement of the right side of the face.

27. Hemihyperplasia . Same patient as depicted in. with associated enlargement of the right half of the tongue.

28. Hemihyperplasia . Radiograph of the same patient. Mandible and teeth on the right side are enlarged.

29. Progressive hemifacial atrophy. Young girl with right-sided facial atrophy.

30. "cloverleaf" skull

31. Crouzon syndrome. Ocular proptosisand midface hypoplasia .

32. Apert syndrome. Radiograph showing "tower skull," midface hypoplasia , and digitalmarkings . Similardigital impressions are apparent in people with Crouzon syndrome.

33. Apert syndrome. Syndactyly of the hand.

34. Apert syndrome. Abnormal shape of the maxilla, with swellings of the posterior lateral hard palate, resulting in pseudocleft formation.

35. Mandibulofacial dysostosis . Patient exhibits a hypoplastic mandible, downwardslanting palpebral fissures, and ear deformities.