What is reactive bone formation?
Intramembranous bone formed in response to stress on bone or soft tissue
What typical radiologic finding is observed during reactive bone formation?
What occurs on when an onion skin pattern is observed?
Progressive layering of the periosteum
What type of bone is laid down resulting from a rapid stress? Gradual stress?
Woven bone; Lamellar bone
What is Heterotopic Ossification?
Formation of reactive bone in extraskeletal sites
WHat is the name of the disorder in which massive deposits of bone is deposited around multiple joints?
Fibrodysplasia ossificans progressiva
What is the name of the condition in which calcium salts are deposited in soft tissues?
What are the two types of heterotopic calcification?
- Metastatic - WHen increazsed levels of calcium-phosphate product
- Dystrophic - calcification in abnormal or damaged tissue
What is the name of the condition in which reactive bone formation forms in the muscle after injury?
How is myositis ossifican s distinguished from a neoplasm?
In MO, bone matures peripherally, whereas it is immature or not formed at all in the center of the lesion; In a neoplasm, the lesion is most mature centrally