Howard S. An, MD's portrait
Howard S. An, MD
The Morton International Endowed Chair, Professor, Orthopaedic Surgery
Rush University Medical Center
Chicago, IL
Dr. An is a member of the SpineUniverse Editorial Board.

Case Studies from Howard S. An, MD

Cervical Chondrosarcoma

Presented by: D. Park MD, H. An MD
Doctors Daniel K. Park and Howard S. An present primary chondrosarcoma; a rare condition and few reports exist beyond this case.

C1-C2 Instability in Patient with Rheumatoid Arthritis

Presented by: H. An MD, T. Cha MD, MBA
A 50-year-old female presents with a chief complaint of neck pain. The pain is in the base of the neck with radiation to bilateral posterior shoulders. It worsens with movement.
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