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1

Radiographically: large, destructive, lytic & blastic mass with infiltrative margins: sunburst pattern

osteosarcoma

2

Leontiasis ossea (lion face)

Pagets dis (osteitis deformans)
=Enlargement of craniofacial skeleton (frontal bone), heavy cranium difficult to hold up

3

and symp

leiomyosarcoma

4

Platybasia

Pagets dis (osteitis deformans)
=Invagination of the skull base → compression of the posterior fossa

5

warms overlying skin

Pagets dis (osteitis deformans)
-d/t Hypervascularity of bone (acts as AV shunt)

6

no bony reaction, over 2cm, in vert column; pain not relieved by asa

osteobalstoma

7

TB arthritis

Tuberculosis Spondylitis (Pott Disease) (Mycobacterial Osteomyelitis )

8

Saddle nose

Skeletal Syphilis (congenital)

9

sinus tract formation

Tuberculosis Spondylitis (Pott Disease) (Mycobacterial Osteomyelitis )

10

High output CF (if severe)

Pagets dis (osteitis deformans)

11

 Irregular or nodular thickening of the palmar fascia u/l or b/l.
 Puckering and dimpling of the skin may occur over years.
 Slow, progressive flexion contracture affects the 4th and 5th digits of the hand.

Dupuytren Contracture (palmar) subtype superficial fibromatosis

12

vert fx, painful, loss ht, dowagers hump

osteoporosis

13

Micromelic shortening o flimbs, fromntal bossing, macrocephaly, small chest cavity, bell-shaped abd => resp insufficiency

Thanatophoric dysplasia

14

painful, enlarging mass (tender, warm, swollen); systemic s/s mimicking infxn (fever, elevated ESR, anemia, leukocytosis)

Ewing Sarcoma Family Tumors (ESFT) (including PNET)

15

Compression fx of spine → kyphosis

Pagets dis (osteitis deformans)

16

Palpable mass on dorsolateral aspect penis --> can cause abn curvature, constriction of urethra or both

Penile (peyronie dz) subtype superficial fibromatosis

17

severe nocturnal pain in appendiculak skeleton, relieved by nsaids and asa (under 2cm)

osteoid osteoma

18

Codman triangle:

osteosarcoma
=periosteum being lifted by bone: traingular shadow between the cortex & raised ends of the periosteum; indicates an aggressive tumor.

19

Bone pain/deformity (bowing of tibia) and/or nerve entrapment.
may arise in severe cases.
o

Pagets dis (osteitis deformans)

20

Saber shin

Skeletal Syphilis (congenital)
=massive reactive periosteal bone deposition on the medial & anterior surfaces of the tibia.

21

malaise, fever, chills, leukocytosis, throbbing pain over infected region.

pyogenic osteomyelitis spread hematogenously

22

fx, anemia, leukopenia, optic atrophy, deafnes, facial paralysis

osteopetrosis

23

Imaging: foci of flocculent densities.

chondrosarcoma

24

Radiographic: ground glass appearance, well defined margins.

monostotic Fibrous Dysplasia

25

lg infiltrative mass on abd wall

Deep Fibromatosis (desmoid tumors)

26

short stature, chest wall abns, malformed bones

mucopolysaccharidoses

27

Destruction of discs and vertebra → permanent compression fx's = scoliois or kyphosis and neuro deficits secondary to spinal cord and n. compression (paraplegia can happen).

Tuberculosis Spondylitis (Pott Disease) (Mycobacterial Osteomyelitis )

28

limb discrepancies

monostotic Fibrous Dysplasia

29

Short proximal ext, nml trunk, bid bulging head, depression of nose root

achondroplasia

30

Femoral neck, pelvis, spine → complications like PE and pneumonia.

osteoporosis