TGM2 and dermatitis herpetiformis, familial: The following positive results were obtained in examined groups: (i) in case of anti-tTG IgA: 90% of DH patients, 4% of IgA/neutrophil-mediated non-DH dermatoses patients, and 0% in healthy controls; (ii) in case of anti-npG IgA: 90% of DH patients, 8% of IgA/neutrophil-mediated non-DH dermatoses patients, and 0% in healthy controls.