RT Journal Article SR Electronic T1 Chronic suppurative lung disease in sisters mimicking cystic fibrosis JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 520 OP 524 DO 10.1136/adc.49.7.520 VO 49 IS 7 A1 Cogswell, J. J. A1 Risdon, R. A. A1 Taylor, Brent YR 1974 UL http://adc.bmj.com/content/49/7/520.abstract AB Two sisters are described with fatal chronic obstructive lung disease of unknown origin. The lung condition was clinically and histologically indistinguishable from cystic fibrosis and the salivary glands showed pathological changes expected in cystic fibrosis. Neither child had abnormal sweat electrolytes, they had no bowel symptoms, and the pancreas was normal at necropsy.