Diagnostic Imaging (Irene Gold) Part II and III Flashcards
Who are all Benign Bone Tumors (BBT) referred to?
Orthopedist
What are the four characteristics of all Benign Bone Tumors (BBT)?
Short zone of transition
Incidental finding
Geographic lesion
Encapsulated
What is the name of the most common Benign Bone Tumor (BBT) of the appendicular skeleton?
Osteochondroma
What are two types of Osteochondromas?
Pedunculated (Coat Hanger Exostosis/Cauliflower like)
Sessile
What is the name for multiple Osteochondromas?
Hereditary Multiple Exostosis (HME)
What percentage of Hereditary Multiple Exostosis (HME) undergo malignancy?
20%
What is another name for a Unicameral Bone Cyst (UBC)?
Simple Bone Cyst (SBC)
What is the location of a Simple Bone Cyst (SBC)?
Diaphyseal/Metaphyseal
Centrally Located
What age is a Simple Bone Cyst (SBC) usually seen in?
Under the age of 20 years old
What are the common locations of a Simple Bone Cyst (SBC) to appear?
Proximal:
Tibia
Fibula
Humerus
What Radiographic sign is associated with a Simple Bone Cyst (SBC)?
Fallen Fragment Sign
What is the location of a Aneurysmal Bone Cyst (ABC)?
Diaphyseal/Metaphyseal
Eccentrically Located
What age and gender is an Aneurysmal Bone Cyst (ABC) usually seen in?
Females under the age of 20
What is the location of a Giant Cell Tumor (GCT)?
Epiphyseal/Metaphyseal
What age range usually has a Giant Cell Tumor (GCT)?
20-40 year olds
What “classification” do 20% of Giant Cell Tumors become?
Quasi-Malignant
What are five “characteristics” of a Quasi-Malignant tumor?
Non-Expansible Pain and Swelling present Pathological fracture Reduce after surgery Can come back
What kind of appearance is seen on x-ray of a Giant Cell Tumor (GCT)?
Soap Bubble (Saponaceous)
What is the location of a Chondroblastoma?
Epiphyseal/Metaphyseal
What age would you commonly see a Chondroblastoma?
Younger than the age of 20
What two Benign Bone Tumors (BBT) have night pain relieved by aspirin?
Osteoid Osteoma
Brodie’s Abscess (Chronic Osteomyelitis)
What is another name for a Brodie’s Abscess?
Chronic Osteomyelitis
What is the x-ray appearance for a Osteoid Osteoma and Brodie’s Abscess?
Radiolucent central “nidus” with severe reactive sclerosis
What is the most common Benign Bone Tumor (BBT) of the hand?
Enchondroma