ReviewPublished 31 July 2026Primary amenorrhea in adolescents: a case-based narrative review to diagnostic evaluationLetteria Anna Morabito · Cecilia Lugarà · Carla Fazio · Domenico Corica · Eleonora Inì · Paola Romeo · Laura Ieno · Alessandra Li Pomi · Giovanni Luppino · Tommaso Aversa · Malgorzata WasniewskaFrontiers in Adolescent Medicinedoi 10.3389/fradm.2026.1870452