Chondrosarcoma - proximal femur

Case contributed by A.Prof Frank Gaillard

Patient Data

Age: 71
Gender: Male
Modality: X-ray

Intramedullary lesion with calcification

Modality: MRI

The lesion shows low T1, bright T2 and STIR signal

Case Discussion

Chondrosarcoma: Intermediate grade, grade 2/3 in a 71 year old male

Final Diagnosis:

Right proximal femur, excision:
1. Chondrosarcoma
2. Low grade, grade 2/3
3. Size is 3.5 cm in greatest dimension
4. Tumor confined to the medullary cavity, with permeative growth around trabelcular bone, endosteal scalloping and an overlying periosteal reaction
5. Both osteotomy margins and the skeletal muscle soft tissue resection margin are widely negative for tumor involvment.
6. Negative for dedifferentiation

Gross Description:

The specimen showed a lobulated poorly demarcated blue-tinged intramedullary lesion that measures 3.5 x 2.8 x 2.5 cm. The lesion is completely confined within the medullary cavity with areas of endosteal scalloping but there is no breakthrough the cortical bone as well as no soft tissue extension.

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Case Information

rID: 6171
Case created: 1st May 2009
Last edited: 15th Nov 2015
Inclusion in quiz mode: Included

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