PMC7984903_01
Computed tomography of chest showing transverse view of lungs with multiple patchy ground glass opacities with predominant lower lobe involvement, more than a month after initial presentation.
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More than a month later, computed tomography (CT) scan of the chest revealed multiple, approximately 16.4-28.6 mm, enlarged nodes in the mediastinum and hila, diffuse septal thickening, and multiple ill-defined patchy ground glass opacities with a lower lobe predominance (Figure 1).
Pathological findings of lymphocytic interstitial pneumonitis. High-power analysis of lung tissue shows interstitial septa thickening, infiltration by small- to medium-sized lymphocytes (hematoxylin-eosin, magnification x 200).
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Transbronchial lung biopsy demonstrated mild thickening of interstitial septae and increased infiltration by lymphocytes, macrophages, and plasma cells (Figure 2) consistent with LIP.