Este estudio se propone identificar aquellos casos que presentan trastorno alimentario en adolescentes mujeres escolarizadas. Se realizó un estudio en dos fases con una muestra conformada por 110 estudiantes entre 13 y 18 años de edad de la Ciudad de Buenos Aires. En la primera fase, los sujetos completaron el Cuestionario de Datos con el fin de recabar información sobre la edad, la talla, el peso actual, el peso deseado y la sintomatología propia de los trastornos alimentarios. Además, los sujetos fueron evaluados con el Eating Disorder Inventory -2 (EDI-2). En la segunda fase, se realizó una entrevista diagnóstica semiestructurada basada en el Eating Disorder Examination (EDE) con cada una de aquellas estudiantes identificadas como “probales casos” con el fin de confirmar o no, la presencia de trastorno alimentario. También se entrevistaron algunas estudiantes que no cumplían con los criterios para ser identificadas como “probables casos”, en calidad de controles. Finalmente, se determinó que el 10% de la muestra presenta trastorno alimentario. Palabras clave Trastorno alimentario Prevalencia Adolescentes ABSTRACT EATING DISORDERS: IDENTIFICATION OF CASES IN ADOLESCENT STUDENTS IN BUENOS AIRES The aim of this research is to identify those cases that present eating disorders in a population of female students. A two-stage study was carried out in BuenosAires city with a sample conformed by 110 students between 13 and 18 years of age. In the first stage, the subjects were screened with Eating Diosrder Inventory -2 (EDI-2) and completed a Questionnaire of Data in order to obtain information about the age, the height, the current and the ideal body weight, and proper symptomatology of the eating disorders. In the second stage, a semi-structured interview based on Eating Disorder Examination (EDE) was conducted with each of those students identified like “ probale cases “ in order to confirm or not, the presence of eating disorder. Also, some students were interviewed that did not comply with the criteria to be identifying like “probable cases”, as controls. Finally, it was determined that the 10% of the sample presents eating disorders. Key words Eating disorders Prevalence Adolescents