UCSD Musculoskeletal Radiology

bonepit.com

Case of the week 002

 		 

Dec 12th 2002                                            Prior cases of the week

History.

19 female with slowly growing mass on thigh for 1 year.

Pictures.

       

Questions.

Describe the appearances and possible diagnoses.

Answers.

Soft tissue mass with central amorphous calcification.  No bony changes.

Discussion.

Alveolar soft part sarcoma

Malignant granular cell myoblastoma

Young adult females

Thigh muscles

Slow growth, calcifcation, invade bone

Metastasizes late

Vascular, may have flow voids

                    Path - similar to paraganglioma

 

Other malignant causes of soft tissue calcification include synovial cell sarcoma, and rarely any soft tissue sarcoma.

Prior cases of the week