case_images: PMC11298185_01
case_images: The chest CT scan revealed a symmetrical thorax with a centrally positioned trachea and increased bronchovascular bundles in both lungs. Speckled streaks and flaky densities were observed in multiple areas, including the apical posterior, lingual, dorsal lower lobe, and posterior basal segments of the left lung, as well as the apical, anterior, posterior, middle, dorsal, anterior, and medial basal segments of the right upper lobe of the right lung. These findings were accompanied by slightly blurred edges. Cavitation was noted in the apical posterior segment of the left lung and in the right lung, with larger cavitations particularly prominent in the right upper lung. (Red arrows indicate cavitation, while boxes highlight exudation.).
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case_images: PMC11298185_01_CCID-17-1723-g0001.jpg
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case_images: There were also slightly enlarged mediastinal lymph nodes, calcifications in the walls of the aorta and coronary arteries, and bilateral pleural thickening, but no evidence of pleural effusion or soft tissue abnormalities in the chest wall (Figure 1).
case_images: (A) Before beginning treatment with ixekizumab, the patient exhibited several nuclear palm-sized dark red spots on the lumbar back. These spots were partially fused into patches and covered with white scales. (B) After treatment with ixekizumab, scattered walnut to palm-sized dark erythematous plaques were observed on the lower back. These plaques displayed a few white scales on their surface.
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case_images: Dermatological examination reveals scattered dark red patches ranging from walnut to palm size on the lumbar and dorsal regions, with minimal white scales present on the surface (Figure 2).