Unraveling the Complexities of Kartagener's Syndrome: A Case of Bronchiectasis, Isolated Dextrocardia, and Primary Ciliary Dyskinesia in an Adult With Chronic Respiratory Symptoms.

Kartagener's Syndrome (KS), a rare autosomal recessive disorder and a subset of Primary Ciliary Dyskinesia (PCD), is characterized by chronic sinusitis, bronchiectasis, and, in approximately 50% of cases, situs inversus. This condition arises from genetic mutations that impair motile cilia function, leading to defective mucociliary clearance, recurrent respiratory infections, and progressive lung damage. While KS is typically diagnosed in childhood, its recognition in adults is often delayed due to symptom overlap with common respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), or cystic fibrosis. This case report describes a 40-year-old male who presented with a 10-12-day history of productive cough, intermittent left-sided chest pain, and a longstanding history of recurrent respiratory infections and chronic sinusitis. Diagnostic imaging, including chest X-rays and computed tomography (CT) scans, revealed bilateral bronchiectasis, right lung atelectasis, and isolated dextrocardia, with all other organs maintaining normal anatomical positions (situs solitus), an atypical presentation of KS. Laboratory findings indicated mild neutrophilic leukocytosis, and sputum cultures confirmed