In English | En español
Questions About Cancer? 1-800-4-CANCER

NCI Dictionary of Cancer Terms

Page Options

  • Print This Page

Widget

NCI Dictionary of Cancer Terms



kyphosis  listen  (ky-FOH-sis)

  A condition marked by a humpback-like rounding or outward curve of the upper backbone. It may be present at birth or it may be caused by growth problems, arthritis, osteoporosis, tumors, or certain other disorders. It may also occur at some point in time after radiation therapy to the backbone.