Radiographic lucencies in the medial femoral condyle of Thoroughbred sale yearlings reduce the likelihood a horse will sell at auction and the price paid compared with unaffected horses in the same sale; however, no difference in racing results was found between affected and unaffected horses. Authors' addresses: Equine Medical Associates, 996 Nandino Boulevard, Lexington, KY 40511 (Whitman, Morehead, Prichard, Hance); and th