3. Ageof Incidence
Age of incidence 5 to 30 years
Peak incidence b/w 5 to 17 years
Rarely occurs after 30 years
4. Presenting complaints
Localized pain and swelling
Fever anemia and weight loss
Sign and symptoms stimulate Hodgkin's
lymphoma and osteomylitis
6. Conventional Radiography
Poorly marginated lytic lesion
Permeative or mottled type
Soft Tissue mass or infiltration with
or without cortical break
Soft tissue mass ( saucerization)
Periosteal Reaction
7. Periosteal reaction
Lamellar type( onion skinning)
Sun burst or spiculated
Codman triangle
Less common findings
Thickened cortex
Bone expansion
Pathologic fracture
8. Mottled, osteolytic lesion (blue circle) with poorly marginated edges in the diaphysis
of the bone.
Sunburst periosteal reaction (red circle) and lamellated periosteal reaction (white
arrows).
9. Mixed lytic sclerotic lesion in diaphysis with permeative
destructive pattern spiculated periosteal reaction soft
tissue extension
10. X ray femur lateral view showingWell defined expansile lesion with
mottled appearance is visualized in diaphysis of femur. No calcification
seen. cortical break is seen anteriorly. no soft tissue extension seen
11. MRI
Method of choice for stagging
Assess intra and extra osseous
involvement
Helps in evaluation of chemotherapy
response
12. MRI
T1
Low intensity with heterogeneous
contrast enhancement
T2
High signal intensity
13.
14. MR coronal image both thighT1 Post contrast showing heterogeneously
enhancing mass in diaphyseas in medulary cavity of RT femur with
cortical break fracture. edema is also seen
15. X ray femur showing subtle cortical thickening in diaphyseas butT1
post contrast image shows homogenously enhancing soft tissue mass
in medial aspect of femur in proximal diaphyseas
26. Common in 10 to 20 years age
Solitary benign bone lesion
Male to female ratio 3. 1
27. Location
Intra medullary
Involves Metaphysis
Abut growth plate
Proximal ends of tibia fibula and
humerus
May involve iliac and calcaneus over
2o yrs
35. MRI FINDINGS
Un complicated SBC
T1 Low signal intensity
T2 High signal intensity
Complicated SBC
Heterogeneous signal
intensity on T1 T2
Gadolilnium- Peripheral enhancement
36. CT SCAN
Air fluid or Fluid fluid Levels
Bone scan
Photopenic / cold spot
Ill defined sclerotic lesion is visualised in diaphyseas of femur
Subtle diaphyseal interrupted periosteal reaction on x ray left humerus. but T1 wd Gd shows lobulated homogenously enhancing mass in posterior aspect of humerus. marrow and bone signals are normal
X ray showing mixed density Expansile lytic lesion with mottled appearance in metaphyseas .soft tissue deposits calcification also seen
Mixed density lesion is visualised in metaphyseas of femur with cortical break in lateral aspect and soft tissue calcifications
Ill defined sclerotic lesion with permaetive type of distruction is visualized in diaphyseas of femur with sunburst periosteal reaction and soft tissue extension