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62 Cards in this Set

  • Front
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Major causes of dwarfism

ACHONDROPLASIA
40-50 years old, outward bone growth of flat bones of skull and face, and may protrude into sinuses
OSTEOMAS
Abnormal development of type I collagen
OSTEOGENESIS IMPERFECTA
Activates osteoclasts and thus bone resorption and Calcium mobilization
PARATHYROID HORMONE
Associated with Gardner’s syndrome and May cause cosmetic problems; Benign
OSTEOMAS
Bacteria involved in Osteomyelitis?
mostly staphlococcus aureus,may be e.Coli, klebsiella or proteus
Blue sclera
OSTEOGENESIS IMPERFECTA
Bone resorption and Replacement of bone by loose connective tissue
HYPERPARATHYROIDISM
Boney trabeculae thinner and more widely separated
OSTEOPOROSIS
Brittle bone disease
OSTEOGENESIS IMPERFECTA
Brodies abscess of Chronic Osteomyelitis results in?
Abscess surrounded by sclerotic bone
Calcium and Vitamin D needed to prevent
OSTEOPOROSIS
Cancerous bone tumor that arises from osteoblasts. Most common in long bones like tibia and femur
OSTEOID OSTEOMA
Codman's triangle occurs with what condition?
OSTEOSARCOMA
Condition that has cap of cartilage growing from surface of bone underneath and affects metaphysis, lower femur, upper tibia, and humerus
OSTEOCHONDROMA
Decrease in bone mass
OSTEOPOROSIS
Decreased serum calcium or phosphate and decreased levels of vit D
OSTEOMALACIA-RICKETS
Effects femoral necks and vertebrae
OSTEOPOROSIS
Elevation of Periosteum is called?
Codman's Triangle
Enlargement of head: headaches, visual disturbances and deafness
Paget's Disease
estrogen deficiency may increase bone loss and decrease bone synthesis
OSTEOPOROSIS
Genetic factors: VDR molecule
OSTEOPOROSIS
Grows in opposite direction of joint?
OSTEOCHONDROMA
High levels of prostoglandin pain relieved by aspirin
OSTEOID OSTEOMA
Impaired maturation of cartilage in the developing growth plate
ACHONDROPLASIA
In children with open epiphyseal plates produces cup shaped deformity on x ray and Accumulation of unmineralized bone by defective mineralization
OSTEOMALACIA-RICKETS
Increased resorption of calcium by renal tubules
PARATHYROID HORMONE
Increased synthesis of vitamin D
PARATHYROID HORMONE
Intravenous Drug Users often get osteomyelitis from what condition?
Pseudomonas
Involucrum of Chronic Osteomyelitis results in?
Necrosis of Rim of reactive bone
Large central nidus in spine and large bones of legs. Often painless
OSTEOBLASTOMA
Loss of bone
OSTEOPOROSIS
Malignant cells form osteoid, that extend from marrow to cortex to soft tissue to epiphysis to joint
OSTEOSARCOMA
May destroy preexisting bone or grow around it; metastasizes via blood most commonly in lung. May spread to other bones. Lymph nodes almost never involved
OSTEOSARCOMA
MAY DEVELOP SECONDARY OSTEOSARCOMAS
Paget's Disease
May have satellite nodules with what condition?
OSTEOSARCOMA
Mixed phase of paget's disease causes?
Bone resorption and bone formation (Osteoclasts and osteoblasts)
More common in males; 10-30 years old. Radiolucent nidus in central bone of femur, tibial metaphysis
OSTEOID OSTEOMA
Most asymptomatic and common benign tumor of bones; may spontaneously regress; Multiple may be associated with Gardner's syndrome
OSTEOCHONDROMA
Most common in england, australia, and north europe
Paget's Disease
Most common primary bone malignancy; More common in males
OSTEOSARCOMA
Multiple bone fractures and Multiple bone fractures
OSTEOGENESIS IMPERFECTA
Neutrophilic inflammation and necrosis
Acute Osteomyelitis
Newborns often get osteomyelitis from what condition?
H. Influenza
Occurs in patients over 55 years old and affects lumbar sacral area, spine, pelvis, femur, or skull
Paget's Disease
Osteolytic phase of paget's disease causes?
Marrow replaced by connective tissue with osteoclasts. (Osteoclasts)
Osteomyelitis associated with Tuberculosis is also called?
Pott's Disease
Osteosclerotic phase of paget's disease causes?
irregular bone deposition causing a mosaic pattern (osteoblasts)
Paget's Disease often causes what other condition?
Secondary peak of OSTEOSARCOMA
Possible viral etiology
Paget's Disease
Primary : autonomous secretion and Secondary: chronic renal insufficiency
HYPERPARATHYROIDISM
Sequestrum of Chronic Osteomyelitis results in?
Residual necrotic bone
Shortening of proximal extremities bowing of legs and lordosis
ACHONDROPLASIA
Sickle cell patients often get osteomyelitis from what condition?
Salmonella
Structural changes lead to increased bone fragility
OSTEOPOROSIS
Subperiosteal abscesses or disruption of blood supply that can spread to joint capsule
Acute Osteomyelitis
This condition can occur via hematogenous spread, direct extension from joint or tissue or traumatic injury from surgery or trauma
Osteomyelitis
Transverse fracture of long bones
Paget's Disease
Usually asymptomatic; Serum alkaline phosphatase elevated from osteoclasts activity; Hypervascular bone lesions: warm skin, increased cardiac output
Paget's Disease
Usually occurs in 10-25 year olds with second peak after 40; Located in metaphysis, lower femur and upper tibia
OSTEOSARCOMA
What are other preexisting conditions of Osteosarcoma? Radiation:? Chemotherapy:? Trauma:?
Radiation: 10 years post radiation high grade; Chemotherapy: children with retinoblastoma; Trauma does not cause but brings attention to it
What is the main preexisting conditions of Osteosarcoma?

Paget's Disease