معرفی یک موردOverlap Syndrome با درگیری گسترده ریوی به صورت آلوئولیت

Overlap syndrome is defined as presentation of a combination of two or more connective tissue diseases in one patient .Herein we present a 34 years old lady with previous diagnosis of rheumatoid arthritis referring to us with dyspnea on exertion and some other subtle features of systemic lupus erythematous, systemic scleroderma and dermatomyositis. Her HRCT showed diffuse ground glass appearance in both lung fields, typical of alveolitis. She showed dramatic response to multiple pulse steriod therapy with resolution of her pulmonary and extra-pulmonary symptoms