case_images: PMC10874974_01
case_images: Chest X-ray film on admission showed tumor shadows in the right middle lung field (arrowhead) and right hilar hilum swelling (arrow) (A). Chest CT on admission. CT showed an 11mm mass in the right lower lobe (circle) (B). Contrast-enhanced CT showed multiple right hilar hilum lymph swelling (C). CT after 6 courses of durvalumab showed marked reduction of hilar lymph nodes (D).
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case_images: PMC10874974_01_gr1.jpg
case_images: fig1
case_images: A simple chest radiograph showed a nodular shadow in the right middle lung area (Fig. 1A), and a chest computed tomography (CT) scan showed a tumor with a diameter of 11 mm in the right lower lung and enlarged hilar lymph nodes (Fig. 1B and C). After two more courses of the same regimen as above, maintenance therapy with durvalumab was continued on an outpatient basis, and CT showed reduction of hilar lymph nodes (Fig. 1D).
case_images: Histological findings from left lung partial resection reveal small cell carcinoma ((A). H.E. stain). Waxing was observed with 50Hz stimulation of the ulnar nerve (B).
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case_images: PMC10874974_01_gr2.jpg
case_images: fig2
case_images: A partial resection of the right lower lung was performed, and the diagnosis of SCLC was confirmed (Fig. 2A). Postoperative repetitive stimulation-evoked electromyography of the ulnar nerve showed a waxing phenomenon at 50 Hz (Fig. 2B).