Question 1

• The overall thyroid gland has heterogeneous parenchyma
• Diffuse distribution of blood flow throughout the gland
• Right lobe 1.84 × 5.43 × 1.71 cm
• Left lobe 1.99 × 3.89 × 1.89 cm
• Isthmus: 0.37 cm
• Left lobe nodule:
  • Hypoechoic, anterior, 2.05 × 3.31 × 0.91 cm
  • Well-defined margins
  • Peripheral and central blood flow
  • No calcifications
  • Wider than tall

Question 2:

• Overall homogenous background parenchyma of the thyroid
• Right lobe: 3.74 × 4.62 × 2.68 cm
• Isthmus 0.18 cm
• Left lobe: 1.1 × 3.08 × 0.83 cm
• Right cyst takes up almost the entire right lobe:
  • Measures 2.91 × 3.61 × 1.63 cm
  • Mostly cystic with a small amount of solid material peripherally
  • Blood flow peripherally, and a small amount of blood flow in the solid portion
  • Well-defined margins
  • No calcifications

Question 3:

• Background parenchyma homogenous
• Right lobe: 2.52 × 4.91 × 2.52 cm
• Isthmus 0.57 cm
• Left lobe 2.47 × 5.5 × 1.53 cm
• Right nodule:
  • Isoechoic, posterior, 2.08 × 3.49 × 2.11 cm
  • Coarse calcification with posterior shadowing
  • Ill-defined borders
  • Peripheral blood flow with small amount of central blood flow
• Left nodule:
  • Spongiform, 1.71 × 1.57 × 1.37 cm
  • Peripheral blood flow
  • No calcifications
  • Ill-defined borders 

Question 4:

• Overall background echotexture homogenous
• Right lobe 2.84 × 4.04 × 2.66 cm
• Isthmus 0.18 cm
• Left lobe 1.08 × 3.69 × 0.72 cm
• Right thyroid nodule:
  • Takes up almost the entire right lobe
  • Isoechoic
  • Well-defined borders
  • No calcifications
  • Peripheral and central blood flow
  • Wider than tall, 2.4 × 3.19 × 2.0 cm

Question 5:

• Overall very heterogeneous gland; difficult to discern one nodule from another
• Right lobe: 1.76 × 3.84 × 1.87 cm
• Isthmus 0.17 cm
• Left lobe 1.77 × 3.46 × 1.88 cm
• Right nodule:
  • In transverse view appears as 1 nodule, in longitudinal view appears to have a superior and inferior nodule
• Right inferior: 1.76 × 1.75 × 1.24:
  • Hypoechoic
  • Ill-defined margins
  • Microcalcifications
  • Central and peripheral blood flow
• Right superior: 1.76 × 1.61 × 1.29 cm:
  • Hypoechoic
  • Ill-defined margins
  • Microcalcifications
  • Central and peripheral blood flow, and heterogeneous
• Left nodule:
  • Hypoechoic
  • Partially solid and partially cystic
  • Microcalcifications
  • Lobulated
  • Peripheral blood flow