Pediatric airway, infection, congenital disease and development
Pediatric otolaryngology emphasizes airway size, congenital anomalies, and age-specific infection patterns. Know that the pediatric airway is narrower and more compliant, so small edema causes disproportionate obstruction. Recognize croup (barking cough, steeple sign) versus epiglottitis (drooling, tripod position, thumb sign) and that epiglottitis is now rare with vaccination but remains an airway emergency, avoid provoking a compromised child with an uncontrolled throat examination and use an appropriately supported airway assessment.
Understand congenital neck masses: thyroglossal duct cyst (midline, moves with tongue protrusion), branchial cleft cyst (lateral, anterior to sternocleidomastoid), and cystic hygroma/lymphangioma (posterior triangle, transilluminates). Know laryngomalacia as the most common cause of infant stridor (inspiratory, worse supine, resolves with age) and subglottic stenosis as a cause of biphasic stridor.
Know otitis media management: observation for selected older children, antibiotics for young or severe cases, and tympanostomy tubes for recurrent or persistent effusion with hearing/speech impact. Recognize adenotonsillar hypertrophy as a cause of obstructive sleep apnea in children.
Traps: mistaking laryngomalacia for croup; missing foreign body aspiration (sudden choking, unilateral wheeze); and forgetting that retropharyngeal abscess in children can present with neck stiffness and refusal to feed.
Clinical boundary: Stridor has a differential. Consider severity, onset, choking, fever, feeding, growth and airway stability rather than assign a cause from age alone.
Worked example: An infant with positional inspiratory stridor may have laryngomalacia, but actual visualization, severity, feeding and growth assessment are important. A reported position-related change is not advice to place an infant in an unmonitored prone sleep position.
Congenital and acute assessment
A midline cyst that moves with tongue protrusion supports a thyroglossal-tract differential, whereas a lateral cyst has other embryological and acquired possibilities. Appropriate imaging and assessment should identify the relevant anatomy before a definitive operation. In a distressed child with a possible inhaled foreign body, a normal plain radiograph does not eliminate the diagnosis. A button battery in the esophagus differs from an ordinary coin and can rapidly cause serious local injury, so treatment should not wait for a reassuring symptom or an exact injury clock. The absence of a dramatic initial complaint is not proof of safety. Decisions about tonsils, adenoids and ear tubes likewise use actual duration, severity, hearing, development and sleep findings within the applicable framework rather than one episode count alone.