Source:http://linkedlifedata.com/resource/umls/id/C0020241
MSH: A vesicular and bullous eruption having a tendency to recur in summer during childhood and commonly appearing on sun-exposed skin. The lesions are surrounded by an erythematous zone and resemble a vaccination. (From Dorland, 27th ed),NCI: A rare skin disorder of unknown etiology affecting children. It is a photodermatitis, characterized by the formation of vesicles and scarring on sun exposed areas.