CARD9 and allergic bronchopulmonary aspergillosis: <h4>Purpose</h4>We present a patient with CARD9 deficiency and allergic bronchopulmonary aspergillosis (ABPA)-like presentation.<h4>Methods</h4>Following medical history taking and routine laboratory investigations, an inborn error of immunity was suspected, and the responsible variant was identified using Whole Exome Sequencing and confirmed by Sanger sequencing.<h4>Results</h4>A 14-year-old Iranian female presented with a history of chest pain, productive cough, dyspnea, malaise, and recurrent fever.