Bone Disease Flashcards
This lesion would be considered ____-based
Medullary (centric)
This lesion would be considered ____-based
Cortical (eccentric)
This lesion would be considered ____-based
Periosteal
This lesion would be consider ____-based
Extraosseus
The shape of this lesion would be described how
Pedunculated Exostosis (think of broccoli)
The shape of this lesion would be described how
Sessile Exostosis
What is shown here?
Poorly defined margination
What is shown here?
Well defined margination
What is shown here?
Cortical Thinning
(also well-defined lesion)
What is shown here?
Cortical Thickening
What is shown here in regards to cortex?
Cortical Expansion with cortical interupption
What is shown here?
Cortical Destruction
_____ are usually used to describe decreased focal density due to aggressive lesions
Osteolytic (aka permeative/motheaten)
_____ are usually used to describe decreased focal density due to benign lesions
Lucent (aka geographic or soap bubbly)
What lesion is shown here in regards to density?
Lucent (aka geographic)
What is shown here in regards to density?
Soap Bubble (lucent, well-defined)
What is seen here in regards to density?
Peremeative/Motheaten (osteolytic)
What is seen here in regards to density?
Permeative/Motheaten
What is seen here in regards to density? (left is abnormal)
Permeative/Motheaten
_____ are usually used to describe increased focal density due to aggressive lesions
Osteoblastic
_____ are usually used to describe increased focal density due to benign lesions
Sclerotic
What is seen here in regards to density?
Osteoblastic (large zone of transition, ill defined)
What is seen here in regards to density?
Sclerotic
What is seen here in regards to density?
Mixed (osteoblastic & osteolytic)
What are the 5 different types of matrixes?
Fat
Cartilage
Bone
Fibrous
Cystic/Fluid
What is seen here in regards to matrix?
Fat Matrix - bone
What is seen here in regards to matrix?
Fat matrix - soft tissue (periosteal reaction in orange)
Focal, small spots in cartilaginous matrix is referred to as ____
Stippled
What is seen here in regards to matrix?
Stippled calcification in cartilaginous matrix
Larger, variable size & density, confluence of stippled Ca++ is referred to as ____
Flocculent
Thin, curvilinear Ca++, typically seen in aggressive leasions referred to as ____
Arc & ring
What is seen here in regards to matrix?
Flocculent calcification - cartilage matrix
What is seen here in regards to matrix?
Arc & ring - cartilage matrix (laterally)
Osseous Matrix (sclerotic benign tumor)
“Ground glass” appearance is associated with a lesion in the ____ matrix
Fibrous matrix
What is seen here in regards to matrix?
Fibrous Matrix - Ground glass (smoky)
What is seen here in regards to matrix?
Cystic Matrix
What are the 4 categories of periosteal reactions from least to most aggressive?
Solid
Laminated
Spiculated
Codmans triangle
What is seen here in regards to periosteal reaction?
Solid - single layer
What is seen here in regards to periosteal reaction?
Solid - cortical thickening
What is seen here in regards to periosteal reaction?
Sold - irregular single layer
What is seen here in regards to periosteal reaction?
Laminated
In a stipulated periosteal reaction, ____ refers to lesion perpendicular to cortex & _____ refers to lesion radiating from a point source
Hair-on-end
Sunburst
What is seen here in regards to periosteal reaction?
Spiculated - hair on end
What is seen here in regards to periosteal reaction?
Spiculated - hair on end
What is seen here in regards to periosteal reaction?
Spiculated - sunburst
What is seen here in regards to periosteal reaction?
Codmans triangle
What is seen here in regards to soft tissue changes?
Water density
What is seen here in regards to soft tissue changes?
Fat density
What is seen here in regards to soft tissue changes?
Calcific density
What is seen here in regards to soft tissue changes?
Ossific Density
How would you describe the left vs. right image in regards to number of lesions?
Monostotic
Polyostotic
Long zone of transition
Permeative or motheaten appearence
Cortical destruction
Solid, lamined, or spiculated periosteal reaction
Codmans triangle
Soft tissue involvement/mass
These are characteristics of ____ (benign/aggressive) lesions
Aggressive
Short zone of transition
Cortical thinning
Cortical expansion w/o destruction
Sclerotic rim or peripheral sclerosis
Solid or periosteal reaction
Lesion size stable
These are characteristics of ____ (benign/aggressive) lesions
Benign
Describe this lesion in location, density, cortical & overall appearence
Aggressive or benign?
Distal tibial (lateral) metaphysis
Lucent, thin rim of sclerosis
Eccentrically located, cortically based
Cortical thinning & expansion
Soap bubble appearence
Benign
Describe this lesion in location, density, cortical & overall appearence
Aggressive or benign?
Distal Diaphysis/Metaphysis
Motheaten/Permeative
Long zone of transition
Ill-defined lucencies, cortical destruction
Periosteal reactions
Soft Tissue mass
Aggressive
Describe location of lesion, ____-based
Intertrochanteric
Medullary-based
The following lesion is ____ based
Eccentrically, cortical-based
Descibe location of lesion
2nd Distal Phalange
Describe shape of lesion
Pedunculated exostosis
Describe the margination of the following lesion
Sharply marginated, well defined lesion
