Imerslund-Gräsbeck syndrome presenting with a 12-year history of intermittent proteinuria and anemia: a case from the Middle East

This case emphasizes the importance of considering IGS in children and adolescents with unexplained macrocytic anemia and proteinuria, particularly in the Middle East where the condition is underdiagnosed. Early recognition and lifelong vitamin B12 supplementation are critical to prevent irreversible complications such as neurological deficits, developmental delay, and growth impairment.