Choanal atresia
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Choanal atresia
Pathology
Apnea and hypoventilation
Upper respiratory tract disorders
Lower respiratory tract disorders
Nasal polyps
Pneumonia
Retropharyngeal and peritonsillar abscesses
Pneumonia: Pathology review
Tuberculosis: Pathology review
Acute respiratory distress syndrome
Pulmonary changes at high altitude and altitude sickness
Decompression sickness
Cyanide poisoning
Methemoglobinemia
Environmental and chemical toxicities: Pathology review
Respiratory distress syndrome: Pathology review
Tracheoesophageal fistula
Congenital pulmonary airway malformation
Pulmonary hypoplasia
Neonatal respiratory distress syndrome
Transient tachypnea of the newborn
Meconium aspiration syndrome
Apnea of prematurity
Sudden infant death syndrome
Lung cancer
Pancoast tumor
Superior vena cava syndrome
Lung cancer and mesothelioma: Pathology review
Emphysema
Chronic bronchitis
Asthma
Cystic fibrosis
Cystic fibrosis: Pathology review
Bronchiectasis
Alpha 1-antitrypsin deficiency
Obstructive lung diseases: Pathology review
Restrictive lung diseases
Sarcoidosis
Idiopathic pulmonary fibrosis
Hypersensitivity pneumonitis
Restrictive lung diseases: Pathology review
Pleura and pleural space disorders
Flashcards
Choanal atresia
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Key Takeaways
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.