1. Carpal Tunnel Syndrome Associated with Klippel- Trénaunay-Weber Syndrome by Evan Siegall, and Joshua Ratner JBJS Case Connect Volume 5(2):e47 June 10, 2015 ©2015 by The Journal of Bone and Joint Surgery, Inc.

2. Photograph showing characteristic hypertrophy and port wine stains that did not cross the midline of the torso. Evan Siegall, and Joshua Ratner JBJS Case Connect 2015;5:e47 ©2015 by The Journal of Bone and Joint Surgery, Inc.

3. Photograph of the right upper extremity, showing hypertrophy and port wine stains. Evan Siegall, and Joshua Ratner JBJS Case Connect 2015;5:e47 ©2015 by The Journal of Bone and Joint Surgery, Inc.

4. T2-weighted MRI scanning ruled out extrinsic compression of the median nerve by hemangioma or tumor as has been described in other case reports but did show marked hypertrophy of the median nerve as it traversed the carpal tunnel, with associated bowing of... Evan Siegall, and Joshua Ratner JBJS Case Connect 2015;5:e47 ©2015 by The Journal of Bone and Joint Surgery, Inc.

5. Tables showing the results of nerve conduction testing and electromyography. Evan Siegall, and Joshua Ratner JBJS Case Connect 2015;5:e47 ©2015 by The Journal of Bone and Joint Surgery, Inc.

6. Intraoperative photograph showing the hypertrophied median nerve within the carpal tunnel. Evan Siegall, and Joshua Ratner JBJS Case Connect 2015;5:e47 ©2015 by The Journal of Bone and Joint Surgery, Inc.