Benign Bone Tumors (DX imaging) Flashcards Preview

Part 2 Irene Gold Board Review > Benign Bone Tumors (DX imaging) > Flashcards

Flashcards in Benign Bone Tumors (DX imaging) Deck (17):
1

Osteochondroma

-MC BBT of the appendicular skeleton
-pedunculated AKA coat hanger exostosis AKA cauliflower (or mushroom)-like
-or sessile AKA broad based
-multiple osteochondromas= HME (hereditary multiple exostosis)
-20% under go malignancy

2

Unicameral Bone Cyst (UBC) AKA Simple Bone Cyst (SBC)

-Dia/Meta location
-CENTRALLY located
-FLUID filled tumor
-does NOT cause bone expansion
-<20yoa
-assoc. w/ "fallen fragment" sign

3

Aneurysmal Bone Cyst (ABC)

-Dia/Meta location
-ECCentrically located
-BLOOD filled tumor
-CAN expand the bone
-"finger in balloon"/blister of bone appearance
-<20yoa
[**only one to cross epiphyseal growth center!]

4

Giant Cell Tumor (GCT)

-Epi/Meta location
-"soap bubble appearance"/saponaceous
-20-40yoa
[>case mgmnt: -surgical consult, curettage, refer for biopsy, refer to orthopedist]

5

Chondroblastoma

-Epi/Meta
-<20yoa

6

Osteoid Osteoma

**causes bone expansion
-night pain relieved with APIRIN
-radiolucent NIDUS w/severe reactive sclerosis

7

Brodie's Abscess AKA Chronic Osteomyelitis

-night pain relieved by ASPIRIN
-appears like osteoid osteoma

8

Enchondroma

MC BBT of the HAND
-stippled (tiny white dots) appearance
-mult. = OLLIER'S disease (->10-50% malignant)
-w/ST calcification= MAFFUCCI'S syndrome

9

Hemangioma

-MC BBT of the SPINE
-vasular neoplasm (over proliferation of blood vessels in medulla)
-vertical striations AKA "corduroy cloth" AKA "jail bar"
-if seen in ever VB = osteoporosis
-can cause: VB expansion, skull enlargement & spinal stenosis
-case mngmnt: -refer to ortho., continue ADL, adj. to pt. tolerance

10

Enostoma

-bone island

11

Osteopoikilosis

-mult. bone islands (tiny white dots, symm in size/shape)
**MC in: humerus, pelvis, hands, feet
-NO labs (incidental finding & asymp.)

12

Osteoblastoma

-DDX: Giant Cell Tumor & ABC)
**MC BBT to affect NEURAL ARCH
-case mgmnt: surgical curettage & excision, radiation
-NOT resolved: spinal canal stenosis, decr. vibration sense, spinal cord compression

13

Osteoma

**MC BBT to affect the SKULL
-MC found in the FRONTAL sinus
-best see on the CALDWELL projection

14

Fibrous Dysplasia

-most asymp.
-bowing deformities
-assoc. w/ "rind sign" (thick sclerotic border)
-deformity: "saber shin tibia"/"sheppard's crook"
-"ground glass" appearance
-"cafe au lait" (hyper-pigmented, NON-elevated macules)
-w/"coast of MAINE" appearance (jagged, irregular borders)

15

Neurofibromatosis

-present with Scoliosis, cervical Kyphosis
-IVF enlargement
-"cafe au lait" spots
-w/"Coast of California" appearance (smooth edges)

16

Purpose of taking cervical oblique?

to see the IVF

17

2 conditions causing bone deformity:

1-Fibous Dysplasia
2-Paget's (medulla whiter on X-ray than adjacent ST)