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Hemangioma, Fibrosarcoma, Chordoma
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Category of hemangioma
Primary, blood, benign
2 types of hemangiomas
Cavernous- MC
Capillary- sunburst pattern
Most common structure in bone for hemangioma to occur
Cortex
Common sites for hemangiomas to occur
Spine- thoracolumbar (MC benign bone tumor of spine)
Skull- frontal
Common age to develop hemangiomas
Over 40, female bias
Is there pain associated with hemangiomas?
NO
Appearance of hemangiomas
Vertical striations- vertebra
Oval- skull
Course trabeculation- seeing impact on trabecula
Radiolucent- dark
Geographic radiolucency in flat bone- hub & spoke appearance- starburst
Differential for hemangioma
Paget's disease- thickened end plates
Fibrosarcoma
MOCEF
#5 MC primary malignant bone tumor
Category of fibrosarcoma
Primary
Blood Malignant
2 types of fibrosarcoma
Medullary (67%)
Periosteal
MC structure in bone for fibrosarcoma to occur
BOTH
MC bone region for fibrosarcoma to occur
Metaphysis
Common sites for fibrosarcoma to occur
Large tubular long bone- younger
Femur- distal
Tibia- proximal
Humerus- proximal
Flat bone- older
Innominate
Skull
Age for fibrosarcomas to occur
4th decade incidence- 31-40 yoa
Is there pain associated with fibrosarcoma
Yes
Local pain
Swelling
Fibrous mass- ONLY primary malignant tumor w/ sequestration
Produces largest soft tissue mass
Can spread to lymphatic system
Pathologic fracture
Appearance of fibrosarcoma
Geographic
Soap bubble
Highly destructive
Permeative
Fuzzy margin
Expansile
Lytic- radiolucent
Cortical thinning
Wide zone of transition
Large soft tissue mass
Differential for fibrosarcoma
Osteosarcoma- affinity to ossify
Ewing's sarcoma
Chondrosarcoma- affinity to calcify
Giant cell- location
Metastasis
Plasmacytoma- age
Category of plasmacytoma
Primary
Blood
Malignant
MC structure in bone for chordoma to occur?
Medullary
Common sites for chordomas to occur
Ends of axial skeleton (85%)
Sacrococcygeal
Spheno-occipital- basion to foramen magnum, clivus
MC vetebra- C2
Can cross IVD
Age associated with chordomas
B/w 40-70
Males 2:1
Pain associated with chordomas
Bladder/bowel dysfunction
Increased intracranial pressure
Ocular disturbances
Motor weakness
Sensory complaints
Headaches
Nasal discharge
Breathing difficulties
Survival rate of chordoma
5 years- 8.7%
Appearance of chordomas
Geographic
Purely radiolucent- dark w/ no calcification speckles
Centric
Fluid filled cyst- serous fluid
Pathologic fracture- due to slight bone expansion that weakens
Fallen fragment sign- bone fragment from fracture that falls into cyst
Endosteal scalloping
Differential for chordoma
Aneurysmal bone cyst- painful
Giant cell tumor
Author
nakomarose
ID
30893
Card Set
Hemangioma, Fibrosarcoma, Chordoma
Description
Skel Rad B final
Updated
2010-08-23T15:13:05Z
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