From the *Departments of Radiology, †Orthopedic Surgery, and ‡Pathology, New York University, Hospital for Joint Diseases, New York, NY.

Each author certifies that he or she has no commercial associations (eg, consultancies, stock ownership, equity interest, patent/licensing arrangements etc) that might pose a conflict of interest in connection with the submitted article.

Each author certifies that his or her institution has approved or waived approval for the reporting of this case and that all investigations were conducted in conformity with ethical principles or research.

Correspondence to: Deep S. Chatha, MD, Department of Radiology, New York University, Hospital for Joint Diseases, 301 East 17th Street, New York, NY 10003. Phone: 212-598-6643; Fax: 212-598-6125; E-mail: [email protected].