Psammoma Bodies

(M1.PA.17.4751) A 64-year-old female presents to her primary care physician complaining of bloating and early satiety. She also reports that over the past six months, she has developed worsening tiredness that has affected her ability to spend time with her grandchildren. She underwent menopause at the age of 51. Physical examination reveals ascites. A pelvic ultrasound reveals a complex mass arising from the left ovary. A tissue biopsy of the mass is shown in Figure A. Which of the following is the most likely diagnosis?

(M1.PA.13.83) A 37-year-old female visited her primary care physician with a nodular mass in her neck. Fine-needle aspiration of the mass demonstrated malignancy and total thyroidectomy was performed. A histological sample of the excised lesion is shown in Figure A. Which of the following is the most likely diagnosis: