Choanal atresia
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Choanal atresia
Respiratory system
Lower respiratory tract disorders
Acute respiratory distress syndrome
Cyanide poisoning
Decompression sickness
Methemoglobinemia
Pulmonary changes at high altitude and altitude sickness
Congenital pulmonary airway malformation
Pulmonary hypoplasia
Tracheoesophageal fistula
Pneumonia
Lung cancer
Pancoast tumor
Superior vena cava syndrome
Apnea of prematurity
Meconium aspiration syndrome
Neonatal respiratory distress syndrome
Sudden infant death syndrome
Transient tachypnea of the newborn
Alpha 1-antitrypsin deficiency
Asthma
Bronchiectasis
Chronic bronchitis
Cystic fibrosis
Emphysema
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Idiopathic pulmonary fibrosis
Restrictive lung diseases
Sarcoidosis
Respiratory system pathology review
Apnea, hypoventilation and pulmonary hypertension: Pathology review
Cystic fibrosis: Pathology review
Deep vein thrombosis and pulmonary embolism: Pathology review
Lung cancer and mesothelioma: Pathology review
Obstructive lung diseases: Pathology review
Pleural effusion, pneumothorax, hemothorax and atelectasis: Pathology review
Pneumonia: Pathology review
Respiratory distress syndrome: Pathology review
Restrictive lung diseases: Pathology review
Tuberculosis: Pathology review
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Choanal atresia
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Choanal atresia
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Summary
Choanal atresia is a congenital disorder in which a membranous tissue blocks the back of the nose (also called the choana) due to failure of recanalization during fetal development. Choanal atresia can be unilateral or bilateral, depending on whether one or both nasal passages are obstructed. This prevents the air from entering the nasal passages, resulting in symptoms like difficulty breathing and a constantly stuffy nose.
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