3. Macule

4. Papule

5. Nodule

6. Vesicle

7. Intraepithelial vesicle

8. Subepithelial vesicle

9. Ulcer

10. Petechia

11. Echymosis

13. Variable degrees of dysplasia & severe dysplasia (carcinoma in situ) of
squamous epithelium
In the severe dysplasia (CA in situ) there is full
cytological features of malignancy but still the basement
membrane is intact, i.e. there is no invasion

18. Actinomycosis. Cervicofacial
actinomycosis.

19. Actinomycosis colony (sulfur granule)
surrounded by pus.

21. Primary syphilis (chancre).

22. Secondary syphilis. Cutaneous
macular lesions.

24. Tertiary syphilis. Palatal fistula
resulting from a gumma.

26. Tuberculosis of the palate.

27. Tuberculosis of the maxillary alveolar
ridge.

28. Diagram of typical TB granuloma
Caseation
Epithelioid cells
Multinucleated GC
Lymphocytes
fibroblasts

29. Single hilar granuloma : lung

30. Granulomas: low power view

31. Granuloma : low power view

32. Outer: inflamm. Cells Histiocytes & Giant cells Necrosis :Center
Granuloma

33. Langhans giant cell