case_images: PMC10625813_01
case_images: CT chest (mediastinal window) showed left lower lobe mass (blue arrow).
case_images: cro-2023-0016-0001-533220_F01.jpg
case_images: PMC10625813_01_cro-2023-0016-0001-533220_F01.jpg
case_images: F1
case_images: In addition to scattered foci of increased enhancement in the liver, lung lesion is shown in Figures 1 and 2.
case_images: CT chest (lung window) showed left lower lobe mass (blue arrow).
case_images: cro-2023-0016-0001-533220_F02.jpg
case_images: PMC10625813_01_cro-2023-0016-0001-533220_F02.jpg
case_images: F2
case_images: In addition to scattered foci of increased enhancement in the liver, lung lesion is shown in Figures 1 and 2.
case_images: Core biopsies showing the tumor with glandular architecture (H&E stain, power of magnification x100 (a) and 200 (b)).
case_images: cro-2023-0016-0001-533220_F03.jpg
case_images: PMC10625813_01_cro-2023-0016-0001-533220_F03.jpg
case_images: F3
case_images: Biopsy showed two cores of pulmonary parenchyma that were replaced by glandular tumor characterized by glandular structures lined by columnar epithelium with occasional cytoplasmic mucin vacuoles, goblet cells, and luminal necrosis (shown in Fig. 3).
case_images: Immunohistochemistry staining pattern of the tumor: a: cytokeratin (CK) 7, b: CK 8/18, c: CK 19, d: CK 20, e: MOC-31, and f: caudal type homeobox 2 (CDX2).
case_images: cro-2023-0016-0001-533220_F04.jpg
case_images: PMC10625813_01_cro-2023-0016-0001-533220_F04.jpg
case_images: F4
case_images: By immunohistochemical staining, the tumor cells were positive with cytokeratin (CK) 7, CK 8/18, CK 19, CK 20, MOC-31, and focally positive with caudal type homeobox 2 (CDX2) (shown in Fig. 4); while negative with special AT-rich sequence-binding protein 2, thyroid transcription factor-1, Napsin-A, and ALK5 A4.