Oral Pathology

Lichen Planus: Reticular form: Most common type, characterized by Wickham's striae. Malignant potential: Atrophic and erosive forms are associated with significant malignant transformation risk. Histology: Saw-tooth shaped rete pegs. Solar Elastosis: Characterized clinically by "sailor's skin" or "farmer's skin" (due to chronic sun exposure). Psoriasis & Hereditary …

Osteomyelitis Osteomyelitis is an extensive inflammation of a bone. It involves the cancellous portion, bone marrow, cortex, and periosteum Conditions that alter HOST IMMUNITY Leukemia, Severe anemia, Malnutrition, AIDS, IV- drug abuse, Chronic alcoholism, Febrile illnesses, Malignancy, Autoimmune disease, Diabetes mellitus, Arthritis, Agranulocytosis Conditions that alter vascularity of bone Osteoporosis, Paget’s disease, Fibrous dysplasia, Bon…

Pemphigus → Granular IgG intercellular Lichen Planus → Linear anti-fibrinogen at BM, with lamina propria extensions Cicatricial Pemphigoid → Patchy linear IgG/C3 at BM Bullous Pemphigoid → Patchy linear IgG at BMZ Erythema Multiforme → Patchy linear fluorescence Discoid Lupus (Lesional mucosa) → Speckled pattern (IgG, IgM, IgA, C3, fibrinogen)…