This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Skin
A patient comes with chronic itchy papulovesicles on the extensors which of the following is not true? 
Select and explain. 
A. Aggravated by wheat, B. Dapsone helps, C. IgA granular, D. Subcorneal split
D: Subcorneal split
Answer: D: Subcorneal split 
Explanation: Ans. D. Subcorneal splitImage showing Dermatitis Herpetiformis usually associated with the HLA - DQ2 along with celiac disease and gluten Sensitivity. Lesions mostly on extensor surfaces.Dapsone is an effective treatment is most people.