Conclusion:
Even though AIHA is associated with DiGeorge syndrome, our patient did
not develop any AIHA episodes since birth. The authors believe that the
combination of viral respiratory infection and vitamin B12 deficiency
were the triggers associated with the onset of hemolysis. Combining
these triggers is possibly the underlying reason for the late-onset AIHA
in our patient with a history of DiGeorge syndrome. Authors suggest
checking serum B12 levels regularly in patients with DiGeorge syndrome
and a diet deficient in vitamin B12, which may prevent severe hemolytic
episodes in this cohort of patients.