Lymphoid Interstitial Pneumonitis (LIP)

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Synonym(s)
Lymphocytic Interstitial Pneumonitis, Lymphoid Interstitial Pneumonia

Inflammation and possible scarring of the tissue that surrounds the air sacs of the lungs (lung interstitium). Symptoms of lymphoid interstitial pneumonitis (LIP) include fever, cough, and difficulty breathing (dyspnea). LIP is associated with autoimmune diseases, lymphoproliferative disorders, and certain viral infections, such as HIV or Epstein-Barr virus. LIP is an AIDS-defining condition in children with HIV who are younger than age 13.

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