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Primary Ciliary Dyskinesia with Refractory Chronic Rhinosinusitis
Isao Suzaki1, Kojiro Hirano1, Sawa Arai1
1Department of Otorhinolaryngology, School of Medicine, Showa University, Tokyo, Japan.
Primary ciliary dyskinesia (PCD) is a rare genetic disorder affecting cilia. Diagnosis is complex but suggested by chronic rhinosinusitis, otitis media, bronchitis, and infertility, confirmed by ciliary structural defects.
Area of Science:
- Medical Genetics
- Pulmonology
- Otolaryngology
Background:
- Primary ciliary dyskinesia (PCD) is a rare genetic disorder impacting cilia structure and function.
- Clinical manifestations include otitis media, chronic rhinosinusitis (CRS), chronic bronchitis, and infertility.
- Diagnosis can be challenging due to PCD's complexity.
Observation:
- A 49-year-old male with a history of refractory CRS, otitis media, rhinosinusitis, bronchitis, and infertility presented with persistent nasal and post-nasal discharge and chronic wet cough.
- The patient had undergone three prior surgeries for CRS.
- Nasal mucosa was obtained during a fourth surgery for analysis.
Findings:
- Transmission electron microscopy revealed significant abnormalities in nasal cilia structure.
- Specific defects included a central complex defect, microtubular disorganization, and an inner dynein arm defect.
- These ultrastructural findings, combined with the clinical presentation, led to a definitive diagnosis of PCD.
Implications:
- Refractory CRS with concurrent otitis media, chronic bronchitis, and infertility should raise suspicion for PCD.
- Early consideration of PCD can facilitate timely diagnosis and management.
- Electron microscopy of nasal cilia is crucial for confirming PCD in suspected cases.
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