<prompt> A child presents with recurrent chest infections and recurrent sinusitis. Chest X-ray reveals dextrocardia and situs inversus. The most likely diagnosis is:Kartageners syndromeEhler-Danlos syndromeMarfans symdromeWilliam Campbell syndrome  <response>: Ans, a. Kartageners syndrome Ref: Robbins 9e p683; Nelson 19e pi 49?The most likely diagnosis in a child with history of recurrent chest infections and recurrent sinusitis with dextrocardia and situs inversus on chest X-ray is Kartageners syndrome.Kartageners Syndrome Immotile cilia syndromePrimary ciliary dyskinesia Primary ciliary dyskinesia PCD comprises those respiratory disorders having in common the malfunction of airway cilia. The abnormality results from various inherited primary structural defects in the cilia that lead to repeated and chronic lung and sinus infections. About 50 of patients with PCD have Kartageners syndrome: Situs inversus, chronic sinusitis and otitis, and airway disease leading to bronchiectasis. Recurrent sinopulmonary infections are seenKartageners Syndrome Immotile cilia syndromePrimary ciliary dyskinesiaUltrastructural changes causing immotility of ciliaImmotility during embryogenesisImmotility in respiratory EpitheliumImmotility of cilia in sperms Situs inversus Dextrocardia Bronchiectasis Sinusitis Infertility male Major cardiac AnomalyMajor non cardiac anomalyKartageners syndrome Immotile cilia syndrome Primary ciliary dyskinesia Dextrocardia0 Situs inversus Sinusitis Bronchiectasis Infertility 