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J Clin Pathol. 2012 Mar;65(3):267-71. doi: 10.1136/jclinpath-2011-200415. Epub 2011 Dec 1.

Twenty-year review of quantitative transmission electron microscopy for the diagnosis of primary ciliary dyskinesia.

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  • 1Royal Brompton and Harefield NHS Trust, London, UK. a.shoemark@rbht.nhs.uk

Abstract

BACKGROUND:

The examination of ciliary ultrastructure in a nasal sample remains a definitive diagnostic test for primary ciliary dyskinesia (PCD).

METHODS:

The quantitative assessment of ciliary ultrastructure in the diagnosis of PCD over a 20-year period was reviewed.

RESULTS:

During this period, 1182 patients were referred for ciliary ultrastructural analysis, 242 (20%) of whom were confirmed as having the disease. The two main causes of PCD identified were a lack of outer dynein arms (43%) and a lack of both inner and outer dynein arms (24%). Other causes included transposition, radial spoke and inner dynein arm defects. No specific ultrastructural defects were detected in 33 patients (3%) diagnosed as having PCD on the basis of their clinical features and screening tests that included a low nasal nitric oxide concentration or slow saccharine clearance and abnormal ciliary beat frequency or pattern.

CONCLUSIONS:

Electron microscopy analysis can confirm but does not always exclude a diagnosis of PCD.

PMID:
22135026
[PubMed - indexed for MEDLINE]
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