Data
Clinical presentation: a 43-year-old man was referred for aspiration cytology. He had discovered a lump in the right side of the neck for several months.
Palpation: there was a firm lump lateral to the right thyroid. The right lobe was nodular on palpation.
Laboratory test: TSH 3.89 mIU/L, aTPO 0 U/mL.
Lesion in question:
the large nodular area composed of multiple discrete lesions in the right lobe.