Reason: 3.1 cm hypoattenuating nodule posterior to the right lobe of the thyroid noted on CT Chest 11/29. Please please evaluate further. RIGHT LOBE MEASUREMENTS: 5.2 x 3.0 x 2.1 cm.LEFT LOBE MEASUREMENTS: 4.8 x 2.6 x 2.1 cm.ISTHMUS MEASUREMENTS: Up to 0.7 cm in thickness.RIGHT LOBE: Normal background parenchymal echotexture. There is a subcentimeter nodule in the mid pole with imaging features suggestive of a benign colloid nodule.LEFT LOBE: No significant abnormality noted.ISTHMUS: No significant abnormality noted.PARATHYROID GLANDS: There is an oval-shaped, partially solid and partially cystic nodule posterior to the inferior pole of the right lobe of the thyroid which measures approximately 3.4 x 2.3 x 3.1 cm and demonstrates mild peripheral vascularity.LYMPH NODES: No significant abnormality noted.OTHER: No significant abnormality noted.
Mixed solid and cystic nodule posterior to the right inferior pole of the thyroid. Differential considerations include degenerating parathyroid adenoma (favored) versus exophytic thyroid nodule.