Oral Pathology (Variants of Normal)
What cells are involved in inflammation?
LEUKOCYTES (white cells) - Neutrophils - Lymphocytes - Plasma cells - Eosinophils - Monocytes (e.g., macrophages) - Mast cells
What are five signs of inflammation?
Redness (rubor) → vascular hyperemia Heat, fever (calor) → congestion of local circulation Swelling (tumor) → fluid accumulation Pain (dolor) → chemical mediator & pressure on nerve endings Loss of normal function → due to swelling & pain
Adhesion and migration of neutrophils during inflammation
What does this microscopic image display?
Hairy Tongue
What does this microscopic image display?
Lingual Thyroid Nodule
What does this microscopic image display?
Lymphocytes, plasma cells, and macrophages
What does this microscopic image display?
Physiologic Pigmentation
What does this microscopic image display?
Plasma cells
What does this microscopic image display?
Lingual Veins
What is the blue arrow in this image pointing to?
What is rheumatoid arthritis?
a chronic progressive disease causing inflammation in the joints due to an attack by the immune system
Geographic Tongue (Benign Migratory Glossitis)
areas of erythema surrounded by raised, white border
Fissured Tongue
benign condition characterized by deep grooves
Leukoedema
bluish-white opaque appearance of the buccal mucosa
What are autoimmune diseases?
diseases in which the immune system targets and destroys its own host cells
Fordyce's granules
ectopic sebaceous glands
Hairy Tongue
elongation of the filiform papillae
Ectopic Geographic Tongue
geographic tongue found on mucosal surfaces other than the tongue
Lingual Varicosities
seen in people of age
Median Rhomboid Glossitis
smooth elevated zone on the posterior midline of the tongue
Lingual Thyroid Nodule
undescended, trapped remnants of thyroid tissue
Linea Alba
white line
What are three causes of inflammation?
- Injury (physical trauma, chemical, thermal injuries) - Infection (specific & non-specific) - Immunologic (immune complex deposits, autoimmune disease)
