The "dilapidated brick wall" appearance is classically seen in the histopathology of the following?: (A) Hailey Hailey disease, (B) Pemphigus vulgaris, (C) Darier's disease, (D) Bullous pemphigoid
Answer is A. Hailey Hailey disease/familial benign chronic pemphigus has full thickness paial acantholysis resulting in this appearance. Ref: Rook Textbook of Dermatology, 8th Edition, Page 39.33.