Linear IgA disease (LAD) is a rare autoimmune bullous disease characterized by IgA deposition in the basement membrane zone (BMZ). A 66-year-old male was treated for myelodysplastic syndrome at our hospital for 5 years. during which his condition remained stable. He visited our department because of erythema with itching. https://www.storeanimalwiz.shop/product-category/aquarium-supplies/