PMC7193317_01
Brain MRI images on admission (A) and after the placement of Ommaya reservoirs (B). A: FLAIR imaging shows large cystic brain tumors and multiple small cystic nodules. B: After Ommaya reservoir placement, the giant cysts on both sides decreased in size.
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Brain magnetic resonance imaging (MRI) revealed large cystic masses in both motor areas and multiple brain nodules in both hemispheres (Fig. 1A). As a result, the cystic lesions decreased in size from 25 mm to 7.3 mm on the right side, and from 35 mm to 20 mm on the left side (Fig. 1B).
Chest CT images on admission (A, B) and 15 days after one course of pembrolizumab (C, D). A, B: Chest CT on admission shows an irregular lung nodule in the right lower lobe and lymphadenopathy in the mediastinum (arrowheads). C, D: After one course of pembrolizumab, the lung nodule and mediastinal lymph nodes decreased in size.
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Chest computed tomography (CT) showed a 28-mm irregular nodule in the right lower lobe as well as right hilar and mediastinal lymphadenopathy (Fig. 2A and B). After one course of pembrolizumab treatment, the lung nodule in the right lower lobe and multiple hilar and mediastinal lymph nodes were all decreased in size (Fig. 2C and D).