Telangiectatic osteosarcoma

Case contributed by Dr Bita Abbasi

Presentation

An adolescent with lower limb mass

Patient Data

Age: 14
Gender: Female
X-ray

There is an aggressive lytic lesion in the distal metaphysis of femur. Soft tissue swelling is noted. There are sparse areas of ossification in the tumor matrix. 

MRI

There is a multiloculated lytic lesion in the distal meyaphysis of the femur. Multiple fluid-fluid levels are seen in the lesion. Massive edema is seen in the muscular compartments. Bone marrow edema involves the epiphysis. Multiple hemorrhagic areas are seen in the T1 W image. 

The findings are consistent with telangiectatic osteosarcoma.

Case Discussion

Telangiectatic osteosarcoma is an uncommon variant of osteosarcoma that consists of multiple blood-filled cavities. The location and age-distribution of the lesion are like conventional osteosarcoma. 

In plain X-ray the lesion appears as a lytic destructive lesion with minor amounts of matrix mineralization or periosteal reaction. 

In MRI the lesion contains of multiple cysts filled with blood with multiple fluid-fluid level areas. These findings are not specific and might as well be seen in giant cell tumor and aneurysmal bone cyst

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Case information

rID: 42045
Case created: 3rd Jan 2016
Last edited: 13th Mar 2016
Inclusion in quiz mode: Included

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