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Benign Neoplasms
Benign Neoplasms
79
Anatomy
Professional
11/13/2012

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Term
Long wide zone of transition
Definition
malignant
Term
Sharp narrow zone of transition
Definition
benign
Term
Solitary lesion
Definition
benign
Term
Multiple lesions
Definition
malignant
Term
Solid parallel periosteal new bone formation occurs from these 5 things
Definition
trauma
infection
congenital syphilis
Caffey's disease
Hypertrophic OA
Term
Amorphous/shapeless periosteal new bone formation occurs in 4 things
Definition
acquired syphillis
hypertrophic OA
fibrosarcoma
osteomyeloma
Term
Laminated/onion skin appearance occurs in what 3 diseases
Definition
Fast Growing:
Ewings
Osteosarcoma
osteomyelitis
Term
Spiculated/sunburst/radiating new bone formation is seen in
Definition
osteosarcoma
Term
Codman's triangle is seen in __ neoplasms
Definition
malignant
Term
Most common benign growth of the skeleton with a projection of bone with a cartilaginous cap
Definition
osteochondroma
Term
osteochondroma is most commonly seen at the
Definition
knee
Term
Primary bone sarcomas and secondary metastasis
Definition
malignant bone tumors
Term
long zone of transition
Definition
malignant
Term
Solitary lesions
Definition
benign
Term
multiple lesions
Definition
malignant
Term
laminated onion skin is seen with
Definition
ewings, osteosarcoma, osteomyelitis
Term
sunburst/spiculated/radiating
Definition
osteosarcoma
Term
amorphous/shapeless in appearance
Definition
acquired syphillis, hypertrophic OA, fibrosarcoma, osteomyeloma
Term
Solid/parallel appearance
Definition
trauma, infection, congenital syphillis, caffey's disease, hypertrophic OA. growing response
Term
Cuff off of periosteal new bone response at the margin
Definition
Malignant Codman's triangle
Term
stipplied, calcified contents are
Definition
cartilaginous
Term
homogenous, dense
Definition
osseous
Term
ground glass appearance or hazy
Definition
fibrous
Term
radiolucent appearance
Definition
anything
Term
well defined sclerotic lesion, slow growing
Definition
benign
Term
no margin, or ill defined, aggressive
Definition
malignant
Term
less than 6 cm
Definition
benign
Term
greater than 6 cm often greater than 9
Definition
malignant
Term
longer than wide and orientated along the bone axis
Definition
benign
Term
wider than long
Definition
malignant
Term
benign osseous lesion projection with a cartilagenous cap
Definition
osteochondroma
Term
m/c site of osteochondroma
Definition
knee
Term
long narrow base with cartilaginous cap, points away from the joint, cortex and trabeculae are continuous with host bone
Definition
pedunculated osteochondroma
Term
broad based projection from metaphysics cortex continuous with host bone
Definition
sessile osteochondroma
Term
dense amorphous, localized area of spotty calcification, usually found in flat bones (scapula/pelvis)
Definition
calcific osteochondroma
Term
more than one osteochondroma is known as
Definition
HME (hereditary multiple exostosis)
Term
HME will have bilateral __ femoral necks
Definition
fat
Term
rare benign osseous lesion commonly seen on the vertebral arch of the spine or tubular bones
Definition
osteoblastoma
Term
Osteoblastomas are seen as
Definition
radioopaque or radiolucent
Term
Quasimalignant seen in ages 20-40 with a dull intermittent ache, localized tenderness, with possible palpable mass
Definition
GCT
Term
GCT can go from benign to malignant especially at the
Definition
wrist
Term
Classic locations of GCT
Definition
distal femur, proximal tibia, distal radius, proximal humerus
Term
GCT is moderately expansile and extends to
Definition
articular surface
Term
GCT with primary malignancy will be associated with
Definition
soft tissue mass
Term
Benign GCT will have
Definition
no associated soft tissue mass
Term
Benign GCT ___ cross joint space
Definition
may
Term
Malignant GCT __ cross joint space
Definition
rarely
Term
Benign osseous lesion seen in the frontal sinus, inner and outer table of the skull, and mandible
Definition
Osteoma
Term
Treatment of Osteoma
Definition
removal if causing issue
Term
Benign osseous lesion of the femur, tibia with pain that is worse at night relieved by aspirin
Definition
osteoid ostoma
Term
Ostoid ostoma will have a
Definition
sclerotic appearance with radiolucency around it
Term
Radiolucency of a tumor is called a
Definition
nidus
Term
soap bubble appearance seen in ostoid ostoma
Definition
lobulated or trabeculated
Term
Fluid filled cyst with a fibrous lining seen in males ages 3-14
Definition
Unicameral Bone Cyst
Term
most UBC are found in
Definition
humerus or proximal femur
Term
UBC features are
Definition
expansile
geographic
pseudolobulated
fallen fragment sign/hinged fragment sign
Term
UBC will start/end in the
Definition
metaphysis and end in diaphysis; it will not cross the growth plate
Term
cystic cavity filled with blood
Definition
Aneurysmal Bone Cyst
Term
Clinically seen in female patients 5-20 years of age with an acute onset of pain with rapid increased severity
Definition
ABC
Term
Expansile geographic lesion, soap bubble appearance, no periosteal reaction, short zone of transition
Definition
ABC
Term
if the patient has pain then it will be ___ (ABC/UBC)
Definition
ABC
Term
UBC is ___ than wide
Definition
longer
Term
ABC is __ than long
Definition
wider
Term
Most common benign tumor of the hands
Definition
enchondroma
Term
Male age 10-30 with painless tumor in long tubular bones, sudden onset of pain without trauma. Commonly seen in hands
Definition
enchondroma
Term
geographic area of radiolucency, cortex remains intact, central in metaphysis, host bone is destroyed , stippled punctate calcification
Definition
enchondroma
Term
Enchondroma in multiple sites seen in the hands
Definition
Olliers disease, multiple enchondromatosis
Term
Pain is rare, age (1-4), deformity and loss of limb function may occur, occurs in small bones of hands and feet, femur, tibia
Definition
Olliers disease
Term
muliple round or ovoid radiolucencies, calcific stippling in matrix, centrally or eccentrically located, bubble like protrusion of the hand, m/c located in hands and feet
Definition
olliers disease
Term
enchondromatosis with multiple soft tissue cavernous hemangiomas
Definition
Maffucci syndrome
Term
Fibrous xanthoma that is more common in children 4-8
Definition
Fibrous Cortical Defect
Term
Firbrous xanthoma that is more common in males 8-20
Definition
Non ossifying fibroma
Term
eccentric metaphyseal location, radiolucent matrix, geographic lesions may have soap bubble appearance, sclerotic margin, may heal spontaneously within 2-5 years, no periosteal reaction
Definition
fibrous xanthoma
Term
When the lesion of a fibrous xanthoma becomes elongated think ___
Definition
NOF
Term
Fibrous xanthoma with scalloped margins
Definition
NOF
Term
Most common Primary benign neoplasm of the spine that is a slowly growing bone lesion composed of newly formed vascular tissue
Definition
hemangioma
Term
Clinically age >40 years, clinically silent, if expansile there is spinal stenosis, most common sites are spine and skull
Definition
hemangioma
Term
Hemangioma radiological features are present in the vertebral body and present as
Definition
coarse vertical striation, paravertebral swelling
Term
benign bone tumor of one vertebral body with corduroy cloth appearance
Definition
hemangioma
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