PMC9663209_01
Computed tomography scan showing a mass in the upper part of the left lung: (a) coronal view and (b) sagittal view.
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Computed tomography (CT) scan was performed, showing a mass in the upper part of the left lung (Figure 1).
Chest X-ray of our patient on the day that she presented with dyspnea and chest pain.
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In her follow-up, the patient came to our center with dyspnea and chest pain four days later (Figure 2).
Cut section of the thyroid shows an ill-defined creamy firm mass in the right lobe.
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The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).
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).
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The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).
Cytology smear shows moderate number of isolated and clusters of highly atypical cells.
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The immunohistochemistry evaluation confirmed the diagnosis: positive for CK7, CK20, and CDX2 and negative for TTF-1 (Figures 3-5).