Linear IgA Bullous Dermatosis

Comment and Additional Clinical Information:

Here, the neutrophil rich infiltrate with 
papillary dermal microabscess formation mimicks 
dermatitis herpetiformis on the H+E 
stained section; however, the linear band of
IgA distinguishes it from dermatitis herpetiformis.

The patient was started on dapsone and
a tapering course of prednisone.

The etiology in this case is idiopathic.

The patient was not taking any medications 
that have been implicated as causative of 
linear IgA bullous dermatosis.

Links to PubMed for references

Linear IgA dermatosis:
Vancomycin Induced Linear IgA dermatosis:
Drug Induced Linear IgA dermatosis:
Linear IgA dermatosis:


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