Eyes, ears, nose and throat
Age-related macular degeneration
Retinopathy of prematurity
Conductive hearing loss
Eustachian tube dysfunction
Tympanic membrane perforation
Acoustic neuroma (schwannoma)
Temporomandibular joint dysfunction
Gastroesophageal reflux disease (GERD)
Retropharyngeal and peritonsillar abscesses
Thyroglossal duct cyst
Eye conditions: Refractive errors, lens disorders and glaucoma: Pathology review
Eye conditions: Retinal disorders: Pathology review
Eye conditions: Inflammation, infections and trauma: Pathology review
Vertigo: Pathology review
Nasal, oral and pharyngeal diseases: Pathology review
Thyroid nodules and thyroid cancer: Pathology review
Parathyroid disorders and calcium imbalance: Pathology review
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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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