Overview of Atypical Diabetes.

Area of Science:

• Pediatrics
• Endocrinology
• Genetics

Background:

• Type 1 and type 2 diabetes mellitus are common in youth.
• Atypical diabetes forms, including monogenic diabetes, are increasingly recognized.
• These forms may necessitate distinct, etiology-specific treatment approaches.

Purpose of the Study:

• To highlight the prevalence and diagnostic considerations of atypical diabetes in pediatric populations.
• To emphasize the importance of identifying monogenic, mitochondrial, and cystic fibrosis-related diabetes.
• To guide clinicians in considering atypical diabetes in specific patient cohorts.

Main Methods:

• Review of existing literature on atypical diabetes in children and adolescents.
• Analysis of diagnostic criteria for differentiating atypical diabetes from common forms.
• Case examples illustrating the presentation of various atypical diabetes subtypes.

Main Results:

• Monogenic diabetes accounts for a significant percentage of diabetes cases in children (up to 6.5%).
• Mitochondrial and cystic fibrosis-related diabetes are less common but associated with specific underlying conditions.
• Key indicators for considering atypical diabetes include age (<25 years), non-autoimmune presentation, absence of typical type 2 diabetes features, and associated comorbidities.

Conclusions:

• Atypical diabetes is a critical consideration in pediatric diabetes management.
• Early identification of etiology-specific diabetes forms ensures appropriate therapeutic strategies.
• Clinicians should maintain a high index of suspicion for atypical diabetes in at-risk youth.