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The relevance of Scammon\u2019s classical growth curves to site-specific oropharyngeal development has been called into question, despite the fact that they have long provided a fundamental framework for comprehending lymphoid tissue maturation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main body<\/jats:title>\n                    <jats:p>This narrative review synthesizes current imaging-based and morphometric evidence on the age-related growth of the adenoids, palatine tonsils, lingual tonsils, and tongue, within the context of craniofacial development. Adenoidal tissue undergoes rapid early growth, peaking between 6 and 8 years \u2014 earlier than predicted by Scammon\u2019s lymphoid curve. Palatine tonsils reach maximum dimensions between 8 and 10 years before gradual involution. Lingual tonsils lack normative developmental data in healthy children and appear largely absent on MRI in asymptomatic subjects, with hypertrophy representing a compensatory or condition-dependent response rather than normal development. The tongue follows a general-type growth trajectory with marked regional differences: the anterior two-thirds attains near-adult size by 8\u201310 years, while the posterior third continues enlarging into adolescence. These structure-specific trajectories interact with the differential maturation of craniofacial structures \u2014 the cranium, maxilla, and mandible \u2014 creating a transient \u201cwindow of vulnerability\u201d between approximately 5 and 10 years of age, during which soft tissue volume disproportionately narrows the upper airway.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Oropharyngeal soft tissue growth is structure-specific and does not conform to a single generalized growth curve. A conceptual, site-specific clinical framework integrating the distinct growth trajectories of each tissue and their proportional relationship to craniofacial development is essential for orthodontic assessment, airway risk stratification, and timely intervention in children with or at risk for sleep-disordered breathing.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11325-026-03809-6","type":"journal-article","created":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T08:36:13Z","timestamp":1789806973000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Conceptual growth curves of oropharyngeal soft tissues and craniofacial skeletal structures: clinical implications for pediatric airway management"],"prefix":"10.1007","volume":"30","author":[{"given":"Audrey J.","family":"Yoon","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jocelyn K. 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This narrative review did not involve human participants, animal subjects, or the use of identifiable patient data. No institutional ethics approval was required.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare that they have no competing interests.","order":2,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"265"}}