Primary ciliary dyskinesia is a cause of bronchial dilatation, associated with rheumatoid lung is rare. This is why we report a case with the aim of discussing the clinical, diagnostic characteristics and therapeutic possibilities of ciliary pathology and showing the link between it and rheumatoid arthritis. Observation: This is a 40-year-old African patient, married without children, from a consanguineous couple, with a family history of a brother who died in adulthood in a picture of respiratory failure and productive cough. She presented with recurrent rhinorrhea since childhood and bronchorrhea in a picture of progressively worsening dyspnea and clubbing. During the evolution of the disease, inflammatory polyarthralgia was associated. The ultrastructural ciliary study by electron microscopy and the measurement of nasal nitrogen oxide are the confirmatory examinations of primary ciliary dyskinesia. They are not achievable in our practice. However, based on the history and clinical findings, the patient presented several elements in favor of this pathology. additional investigations, notably the rheumatoid factor and the chest CT scan, allowed us to suggest rheumatoid lung. Our therapeutic conduct was the administration of antibiotic therapy, oxygen therapy, immunosuppressant, anti-inflammatory and the practice of respiratory physiotherapy. Conclusion: Primary ciliary dyskinesia associated with pulmonary involvement in rheumatoid arthritis increases the risk of developing respiratory failure.