Bone Tumors Flashcards
In regards to bone tumors, are benign or malignant tumors more common?
Benign
What type of bone tumors are the most common?
Matrix and fibrous producing tumors
What are the two most common benign bone tumors?
Osteochondroma, fibrous cortical defects
What are the most common primary bone cancers?
Osteosarcoma, chondrosarcoma, Ewing sarcoma
What population has an increased risk of bone cancer?
Elderly
What are some additional risks for bone tumors?
RB or TP53 mutations, AVN, chronic osteomyelitis, Paget disease, irradiation, orthopedic hardware
What bones are usually affected by bone tumors?
Long bones of extremities
How are bone tumors diagnosed?
Incidental or pathological fracture
What is usually the age range for osteosarcomas?
10-20
What is the usual location of osteosarcomas?
Knee
What is the usual age range for osteomalacia (benign)?
40-50
What is the usual location of osteomas?
Facial bones, skull (frontal bone)
How are bone forming tumors usually diagnosed?
Biopsy
What are the main types of bone forming tumors?
Osteoma, osteoid osteoma & osteoblastoma, osteosarcoma
Which type of bone forming tumor is now said to be a developmental anomaly or reactive growth following trauma?
Osteoma
Which type of bone forming tumor creates matter very similar to normal bone?
Osteoma
What does exophytic mean?
Growing out, not growing in
Which type of bone forming tumor is completely non-invasive and benign?
Osteoma
Who is at a greater risk for osteoid osteomas/osteoblastomas?
Males (2X)
Which type of bone forming tumor is smaller and found in the extremities?
Osteoid osteoma
Which type of bone forming tumor is large and found in the spine?
Osteoblastoma
What age range is usually affected by osteoid osteomas and osteoblastomas?
10-20
What is the middle part of the oval lesion with an osteoid osteoma or osteoblastoma?
Central “nidus” which is radiolucent
What surrounds the central nidus in the lesions involved with osteoid osteomas and osteoblastomas?
Rim of sclerosis
What is a common complaint and feature of osteoid osteomas and osteoblastomas?
Localized nocturnal pain
What is the usual specific location of osteoid osteomas?
Near cortex of long bones like the femur and tibia
What is the unique method of relief for osteoid osteomas?
Aspirin
What is the size of osteoid osteomas?
<2cm
What is the size of osteoblastomas?
2-6 cm
What is the specific location of osteoblastomas?
Spinous and transverse processes of vertebrae
What is the treatment for osteoblastomas?
Excision, possible irradiation
Which is associated with mild pain that is unrelieved by aspirin: osteoid osteoma or osteoblastoma?
Osteoblastoma
Which type of bone forming tumor is aggressively malignant?
Osteosarcoma
What is the most common primary bone cancer?
Osteosarcoma