case_images: PMC5787658_01
case_images: CT showing hypodense mass occupying right thyroid gland, across the isthmus to the left thyroid lobe with a ring calcification feature on right lobe
case_images: ijo-30-065-g001.jpg
case_images: PMC5787658_01_ijo-30-065-g001.jpg
case_images: F1
case_images: Computed tomography (CT) scan revealed the presence of a thyroid mass involving bilateral lobes and isthmus with bilateral cervical lymphadenopathy (Fig.1) with evidence of lung metastases (Fig.2). 
case_images: Cohesive malignant cells arranged in sheets, nests, cords, islands and trabeculae pattern [4x, hematoxylin and eosin (HE)]. These malignant cells exhibit large, pleomorphic, hyperchromatic to vesicular nuclei with large prominent eosinophilic nucleoli and abundant eosinophilic cytoplasm
case_images: ijo-30-065-g003.jpg
case_images: PMC5787658_01_ijo-30-065-g003.jpg
case_images: F3
case_images: Features of keratin pearls and intercellular bridges. (40x, HE)
case_images: ijo-30-065-g004.jpg
case_images: PMC5787658_01_ijo-30-065-g004.jpg
case_images: F4
case_images: Individual keratinization and intercellular bridges were noted as well as tumor cell spindling (Fig. 4).