NBCE Part 4 Radiologyyy

NBCE Part 4 Radiologyyy

osteochondroma - ANS-

*Unicameral bone cyst/simple bone cyst
-central
-90% humerus and knee
-diaphysis - ANS-what is it?

Either pedunculated (coat hanger exostosis/caulifflower like) or sessile.

Hereditary multiple exostosis is multiple osteochondromas
Young adults - ANS-*Osteochondroma* characteristics

*Aneurysmal Bone Cyst*
Eccentric (starts off to the side)
Long bones, 40% upper limb, 40% Lowe limb, sacrum, spine
Metaphysis - ANS-what is it?

*Aneurysmal Bone Cyst*

signs - ANS-what is it?

*Giant Cell Tumor*
-eccentric
-m/c in wrist and knee
Extends to bone end after growth plate closure - ANS-what is it?

*Giant Cell Tumor* - ANS-what is it?

*Chondroblastoma*

1) location

2) demographic - ANS-what is it?

What 3 primary benign tumors appear cartilaginous? - ANS-1. Enchondroma
2. Olliers

,3. Maffuci's

*Osteoid Osteoma*
Radiolucent nidus+surrounding reactive sclerosis
1) night pain relieved by aspirin
Young (10-25) - ANS-what is it?

*Brodie's Abscess*

1) night pain relieved by aspirin, larger but less reactive sclerosis - ANS-what is it?

enchondroma - ANS-what is it?

Olliers - ANS-what is it?

Maffucci Syndrome - ANS-what is it?

hemangioma - ANS-what is it?

What primary benign tumors have a bony appearance? - ANS-1.osteochondroma HME
2. Hemangioma
3.osteoid osteoma and osteblastoma
4. Bone islands

*Hemangioma*

1) *referral to orthopedist*
2) *adjust to tolerance*
3) *continue ADL's as normal* - ANS-what is it and what is the management?

*Enostoma*

1) what is it

2) what does it look like - ANS-what is it?

*Osteopoikilosis*

1) what is it

,2) most common location

3) appearance

4) how to rule out metastasis - ANS-what is it?

osteoblastoma - ANS-what is it?

*Osteoblastoma*

1) case management is surgery for *curettage, surgical excision, radiation* - ANS-what
is it and what is the managment?

osteoma - ANS-what is it?

*o*steoblastoma (neck)

*g*iant cell tumor (Epiphysis/Metaphysis)

*a*neurysmal bone cyst( Diaphysis/Metaphysis) - ANS-*3 benign bone tumors that
cause expansion of the neural arch*...

*Osteoma*

1) most common location in the skull

2) best seen on what projection - ANS-what is it?

what is the common location?

what xray view?

*Fibrous Dysplasia*
Softens bone with rom of dense sclerosis
Shepard's hook-Cox's varus with bowing - ANS-what is it?

*Fibrous Dysplasia*

3) causes deformity such as *saber shin tibia* and *shephard's crook femur* -
ANS-what specific signs

, *Fibrous Dysplasia*

4) ground glass appearance*, *cafe au lait spots* with the coast of main appearance-
dark pigmented non elevated macules with irregular borders - ANS-what specific signs

*Neurofibromatosis* - ANS-what is it?

*Fibrous dysplasia*

*Paget's disease* - ANS-What *two conditions that cause bone deformities*?

*Multiple Myeloma* and *lytic metastasis* - ANS-What *two conditions make bone dark*
on x-ray?

*multiple myeloma*

the most common *primary malignancy of bone* - ANS-what is it?

*Multiple Myeloma*
----------------------

*1* AKA plasma cell sarcoma.

*2* Typical patient is *over 50*

*3* complaining of *cachexia, weight loss, anemia*

Malignant proliferation of plasma cells infiltrating bone marrow. - ANS-what is it?

*Multiple Myeloma*

4) xray findings

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*4* Multiple dark densities that are similar in size (*punched out lesions*).

Can cause *pathological collapse of the vertebra*-loss of posterior and anterior body
height called *vertebra plana*- pedicles are spared.