Jesús Rodolfo Valenzuela-Ruiz - Department of Health Sciences, School of Medicine, University of the Valley of Mexico, Hermosillo, Mexico.
Gustavo Francisco Bobadilla-Olaje - Gynecology and Pediatrics Hospital “Dr. Lucio Mayoral Hernández ”, Mexican Social Security Institute, Hermosillo, Mexico.
Jesús René Tadeo Calleja-López - Department of Medicine and Health Sciences, School of Medicine, University of Sonora, Hermosillo, Mexico.
Enrique Ruibal-Tavares - Department of Medicine and Health Sciences, School of Medicine, University of Sonora, Hermosillo, Mexico.
Cristian Noé Rivera-Rosas - Department of Medicine and Health Sciences, School of Medicine, University of Sonora, Hermosillo, Mexico.
Luis José Aguilera-Duarte - Department of Medicine and Health Sciences, School of Medicine, University of Sonora, Hermosillo, Mexico.
Jesús Omar Ruiz-Quiroz - Department of Health Sciences, School of Medicine, University of the Valley of Mexico, Hermosillo, Mexico.

Background: Diabetes mellitus (DM) is characterized by sustained hyperglycemia (HG), which has multiple etiologies. The American Diabetes Association (ADA) classifies DM into four major groups. In the pediatric age, DM can be caused by several etiologies. Case Presentation: We present a series of four case reports of DM among pediatric patients caused by different etiologies, to discuss several clinical presentations of DM among children and the teenage population, as well as diverse therapeutic options for the different DM subtypes. Conclusions: We conclude that DM in the pediatric age group has multiple etiologies and presentation variants. Type ۱ DM still represents the highest incidence in this age group, however, several factors have aided in the awareness and diagnosis of other types of DM previously considered as rather infrequent in this age group.

Children, Adolescents, Type ۱ diabetes mellitus, Type ۲ diabetes mellitus, Hyperglycemia, Insulin