Chondrosarcoma - proximal femur

Case contributed by A.Prof Frank Gaillard

Patient Data

Age: 70 years
Gender: Male
X-ray

An intramedullary lesion is noted with associated endosteal scalloping and chondral calcification. No periosteal reaction or extra-osseous mass is evident. 

MRI

Selected images from an MRI demonstrate the intramedullary lesion to have low T1, bright T2 and STIR signal. No extra-osseous extension. Features are consistent with a low-grade chondroid lesion, likely a chondrosarcoma

Case Discussion

The patient went on to have surgery. 

Histology

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. Negative for dedifferentiation

Final diagnosis:  chondrosarcoma (intermediate grade, grade 2/3)

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Case information

rID: 6171
Published: 1st May 2009
Last edited: 4th May 2018
Inclusion in quiz mode: Included

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