PMC9482239_01
chest CT scan, mediastinal window (A, B, C), axial slices (A, B) showing adenopathies of the prevascular territory (blue arrow) and upper left laterotracheal territory (red arrow), osteolytic lesion of the sternum (C) (blue arrow), parenchymal window, axial slice showing a left apex dense nodule (blue arrow) (D)
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F1
The CT scan revealed multifocal metastatic bone lesions, cervical, axillary and mediastinal metastatic lymphadenopathies, metastatic nodules in the lungs and adrenal glands (Figure 1).
histological examination, hematoxylin and eosin stain, (A, 10x) and (B, 20x) showing a carcinomatous proliferation of papillary architecture
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F2
The histological examination of the nodule revealed carcinomatous proliferation of papillary architecture with papillary-like nuclear features and psammomatous calcifications (Figure 2).
immunohistochemistry, the tumour cells showing positive staining for thyroid transcription factor-1 (A, 20x) and thyroglobulin (B, 20x)
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F3
Immunohistochemically, the tumour cells showed positive staining for thyroid transcription factor-1 and thyroglobulin (Figure 3).