CLINICAL IMAGAGINGAN ATLAS OF DIFFERENTIAL DAIGNOSISEISENBERG

1. 17Localized Calcification or
Ossification in Muscles and
Subcutaneous Tissues

2. CLINICAL IMAGAGING
AN ATLAS OF DIFFERENTIAL DAIGNOSIS
EISENBERG
DR. Muhammad Bin Zulfiqar
PGR-FCPS III SIMS/SHL

3. • Fig B 17-1 Myositis ossificans. (A) Knee. (B)
Elbow.

4. • Fig B 17-2 Parosteal sarcoma. (A) Frontal and (B) lateral
views of the leg demonstrate a broad-based, densely
ossified mass extending outward from the distal femur.
The characteristic radiolucent line separating the dense
mass of tumor bone from the cortex is not seen in this
huge lesion.

5. • Fig B 17-3 Myositis ossificans associated with neurologic
disorders. Diffuse osseous deposits in muscles, tendons,
and ligaments about the hip in a patient with long-term
paralysis.

6. Fig B 17-4 Extravasation of a calcium gluconate injection. Soft-
tissue opacification in a child.

7. • Fig B 17-5 Lipoma. Bizarre calcification in an
extensive tumor about the knee.

8. • Fig B 17-6 Chondrosarcoma. (A) Prominent dense
calcification in a large exostotic chondrosarcoma. (B)
Extensive flocculent calcification in the cartilaginous
matrix. The arrow points to a small osteochondroma in
this patient with multiple hereditary exostoses.

9. • Fig B 17-7 Extraskeletal osteosarcoma of the
posterolateral thigh.30

10. • Fig B 17-8 Synovioma of the posteromedial
thigh. Lateral view shows a large soft-tissue
mass with extensive calcific deposits
(arrowheads) in it.30

11. • Fig B 17-9 Ossified surgical scar. Long, linear
density on the anterior abdominal wall
(arrows).

12. • Fig B 17-10 Chronic venous stasis. Soft-tissue
calcification associated with periosteal
reaction about the distal tibia and numerous
phleboliths.