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From questions on page 16.
ANSWER TO QUESTION 1
Answer is C, Linear immunoglobulin A (IgA) dermatosis is an autoimmune subepidermal vesiculobullous disease of children (chronic bullous dermatosis of childhood) and adults. It is the most common acquired blistering disease in the paediatric population and can appear as early as 6 months of age.1 Vesicles and bullae are usually arranged in an annular manner described as the ‘cluster of jewels’ appearance. Lesions in children occur mostly on the lower abdomen and anogenital areas with frequent oral and ocular involvement. Blood tests show antibodies directed against a 97-kd antigen in the lamina lucida of the dermoepidermal junction, and direct immunofluorescence shows linear deposition of IgA at the basement membrane zone. Remission occurs …
Competing interests None.
Provenance and peer review Commissioned; externally peer reviewed.