case_images: PMC9663209_01
case_images: Computed tomography scan showing a mass in the upper part of the left lung: (a) coronal view and (b) sagittal view.
case_images: CRIS2022-8705143.001.jpg
case_images: PMC9663209_01_CRIS2022-8705143.001.jpg
case_images: fig1
case_images: Computed tomography (CT) scan was performed, showing a mass in the upper part of the left lung (Figure 1).
case_images: Chest X-ray of our patient on the day that she presented with dyspnea and chest pain.
case_images: CRIS2022-8705143.002.jpg
case_images: PMC9663209_01_CRIS2022-8705143.002.jpg
case_images: fig2
case_images: In her follow-up, the patient came to our center with dyspnea and chest pain four days later (Figure 2).
case_images: Cut section of the thyroid shows an ill-defined creamy firm mass in the right lobe.
case_images: CRIS2022-8705143.003.jpg
case_images: PMC9663209_01_CRIS2022-8705143.003.jpg
case_images: fig3
case_images: The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).
case_images: Microscopic sections show metastatic glands of colon adenocarcinoma, infiltrating between thyroid follicles: (a) H&E x40 and (b) (H&E x200). The metastatic gland shows immunoreactivity for CK7 (c) and CK20 (d).
case_images: CRIS2022-8705143.004.jpg
case_images: PMC9663209_01_CRIS2022-8705143.004.jpg
case_images: fig4
case_images: The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).
case_images: Cytology smear shows moderate number of isolated and clusters of highly atypical cells.
case_images: CRIS2022-8705143.005.jpg
case_images: PMC9663209_01_CRIS2022-8705143.005.jpg
case_images: fig5
case_images: The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).