Diagnosing Primary Ciliary Dyskinesia can often be difficult. Physical findings suggest the disease, but definitive diagnosis should be made with a ciliary biopsy. Twenty biopsies were obtained from 16 patients and all underwent both light and electron microscopic examination. In 8/20 (40%) there was a discrepancy between the different imaging techniques. Therefore, light microscopy should be used to assess adequacy of biopsy and motion of the cilia alone with electron microscopy to examine ultrastructure.
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