Bone Pathology: Hereditary to Inflammatory

📋 Course Outline

1. Hereditary Bone Lesions
2. Acquired Bone Lesions
3. Neoplastic Bone Diseases
4. Inflammatory Bone Conditions
5. Reparative Bone Lesions
6. Dystrophic Bone Diseases
7. Hormonal Bone Disorders
8. Nutritional Bone Diseases
9. Developmental Bone Abnormalities
10. Central Giant Cell Lesions
11. Osteomyelitis Types
12. Bone Necrosis and Osteoradionecrosis

📖 1. Hereditary Bone Lesions

🔑 Key Concepts & Definitions

• Osteogenesis Imperfecta: A genetic disorder characterized by defective collagen synthesis leading to brittle bones, frequent fractures, and deformities. It is inherited in an autosomal dominant pattern.

• Osteopetrosis (Marble Bone Disease): A hereditary condition marked by increased bone density due to defective osteoclast-mediated bone resorption, resulting in brittle, sclerotic bones prone to fractures.

• Cherubism: An autosomal dominant hereditary disorder causing bilateral, symmetrical expansion of the jaw bones, with fibrous tissue replacing normal bone, giving a "cherubic" facial appearance.

• Cleido-cranial Dysplasia: A genetic disorder involving abnormal development of clavicles and skull bones, often associated with mutations affecting connective tissue, leading to clavicular aplasia and cranial deformities.

📝 Essential Points

• Hereditary bone lesions are congenital and often involve abnormal bone formation, resorption, or remodeling due to genetic mutations.