https://www.cureus.com/articles/136126-crohns-disease-like-features-in-a-patient-with-ige-and-selective-igg1-and-igg3-deficiency
We report a 19-year-old male with congenital, combined deficiency of immunoglobulin (Ig) E and 2/4 subclasses of IgG (G1, G3) and chronic diarrhea. He presented at six years of age with chronic recurrent diarrhea responsive to immunoglobulin treatment. Initia…
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