Fig. 18From: Clinical and radiological features of idiopathic interstitial pneumonias (IIPs): a pictorial reviewPattern of LIP (after corticosteroid treatment). Small reticular opacities and nodules (black arrows) are well depicted in the caudal area of the right upper lobe. Surgical biopsy revealed reactive lymphoid follicles along peribronchial regions and indicated a LIP diagnosisBack to article page