The purpose of this exhibit is: 1. to review selected anatomic variants in skeletal imaging using a multi-modality approach 2. to gain familiarity with radiologic findings which can correlate with clinical symptoms 3. to assist in appropriate use of further imaging and orthopedic surgery referrals

There have been numerous described anatomic variants in musculoskeletal imaging which are often felt to have little or no clinical significance. We present several such conditions which can be a source of pain or other symptoms. Cases include the accessory navicular, os trigonum, os acromiale, accessory soleus, fabella syndrome and sesamoiditis. Epidemiology as well as correlation with plain film, CT and MRI is provided.

By reviewing this exhibit, the viewer can: 1. learn the epidemiology and radiologic appearance of some common and not-so-common normal anatomic variants 2. see examples of the above mentioned variants in several modalities which were a source of clinical symptoms 3. better understand when to direct additional imaging evaluation and/or surgical referrals