oral pathology 2 drawin

1
The white lesions
2
Increased number of Langerhans cells
Hyperpara-,or orthokeratinisation
Atrophic lichen planus
Hyperplastic epithelium
Civatte or colloid bodies
Hydropic degeneration of basal cells
Dense infiltration of lymphocytes and plasma
cells confined to lamina propria
Esinophilic band between the epithelium and
connective tissue
Lichen planus
3
Overhanging proliferating epithelium
Keratin plug
Normal epithelial lining
Downward growth of proliferating epithelium
Dense chronic inflammatory cells
Pseudoepitheliomatous hyperplasia
Keratoacanthoma
4
Premalignant lesions
5
Reversed nuclear/ cytoplasmic ratio
Prominent nucleoli
Cellular nuclear pleomorphism
Normal appearing keratinised stratified squamous
epithelium
Abnormal mitosis
Hyperchromatism
Individual cell keratinization
Normal appearing connective tissue
Drop shaped rete ridges
Basal cell hyperplasia
Loss of basal cell polarity
Variable amount of chronic inflammatory cells
Epithelial dysplasia (note loss of normal
stratification of stratified epithelium)
6
Oral cancer
7
Dysplastic surrounding epithelium
Malignant ulcer
Normal appearing epithelium
Vascular connective tissue
Different amount of chronic inflammatory
infiltrate
All signs of dysplasia (except drop shaped rete
ridges) of epithelial cells invading the
connective tissue.
Poorly differentiated squamous cell carcinoma
8
Odontogenic tumors
9
Primitive, cellular connective tissue
Drum-stick odontogenic epithelial proliferation
Long narrow cords of epithelium
Ameloblast-like cells
Small nests of odontogenic epithelium
Stellate-like reticulum
Ameloblastic fibroma
10
Connective tissue stroma
Thick fibrous capsule
Duct-like structures (rosettes-like)
Whorled masses of spindle-shaped epithelial
proliferation
Calcification of the amyloid-like material
Polyhedral cells
Amyloid-like material
Adenomatoid Odontogenic Tumor (AOT)
11
Microcystic changes
Enamel organ-like follicles
Basal cell variant of ameloblastoma
Mature connective tissue
Tall columnar ameloblast-like cells
Granular cell variant
Keratin formation
Stellate reticulum-like cells
Acanthomatous variant
Follicular ameloblastoma
12
Salivary gland diseases and tumors
13
Incomplete fibrous capsule
Chondroid-like tissue
Epithelial compartment in the form of duct-like
structure
Solid sheets of epithelium
Connective tissue stroma and blood vessels
Osteoid-like tissue
Myxochondroid-like tissue
Tumor cells infiltrating the capsule
Pleomorphic adenoma
14
Mature lymphoid tissue supporting the lining
epithelium
Mucous secreting cells
Cystic spaces
Mucoid secretion in the cystic cavity
Germinal centers
Proliferation of glandular tissue in a papillary
pattern
Two layers of oncocytic cells (inner is tall
columnar, and basal is cuboidal)
Warthins tumor (papillary cystadenoma
lymphomatosum)
15
Ductal structure
Incomplete fibrous capsule
Nerve tissue
Solid sheets of malignant salivary gland cells
Perinuclear invasion of tumor cells
Fibrous stroma
Hyalinised tissue
Tumor cells infiltrating the capsule
Cribriform pattern of tumor sheets (different
sizes of duct-like spaces)
Blood vessel
Adenoid cystic carcinoma
16
Epidermoid cells
Fibrous stroma
Infiltrating tumor cells
Duct-like structures
Incomplete fibrous capsule
Intermediate cells
Mucous secreting cells
Cystic spaces filled with mucous secretion
Mucoepidermoid carcinoma
17
Pigmented lesions
18
Stratified squamous epithelium
Lamina propria
Nevus cells proliferating from the basal area to
the submucosal tissue
Compound nevus