RT Journal Article SR Electronic T1 Ciliary disorientation: a possible variant of primary ciliary dyskinesia. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 770 OP 771 DO 10.1136/thx.48.7.770 VO 48 IS 7 A1 A Rutman A1 P Cullinan A1 M Woodhead A1 P J Cole A1 R Wilson YR 1993 UL http://thorax.bmj.com/content/48/7/770.abstract AB Random ciliary orientation has recently been proposed as a variant of primary ciliary dyskinesia. We report a 12 year old boy with all the features of primary ciliary dyskinesia and absent nasal mucociliary clearance in whom repeated biopsies of the nasal epithelium showed normal ciliary beat frequency. The only abnormality discovered was disorientation of the central microtubules of his cilia.