Happy Monday- I have a newborn patient with bowel obstruction and elevated IRT whose DNA studies show she is compound heterozygous for deltaF508/L1254X. Parents of course wanting clinical correlation. As far as I can find, the L1254X mutation has only been reported in one English patient, in a personal communication between Wallace and Tassabehji in 1993. If anyone else has seen this mutation and can give any type of clinical correlation I would welcome it. Thanks, Robin ************************************ Robin M. Troxell, MS, CGC Genetic Counselor University of Missouri Department of Child Health Mercy St. John's Hospital (Springfield, MO) (p) 417-820-9839 (f) 417-820-3720 [log in to unmask] <mailto:[log in to unmask]> "This year, or this month, or, more likely, this very day, we have failed to practise ourselves the kind of behaviour we expect from other people." -- C.S. Lewis --