Lymphocytic interstitial pneumoni s (LIP)
High-Yield Explanation
It is seen most commonly in children who have veically HIV infection. The chest X-ray findings are of a diffuse infiltration and some perihilar lymphadenopathy also. There may be associated hepatomegaly, generalised lymphadenopathy or pancreas. Steroid therapy is only necessary if symptomatic to reduce oxygen requirement and increase exercise tolerance.