Female 25 years old; Reason: 25 y.o. female with hyperparathyroidism. Ultrasound shows left thyroid nodule measuring 1.5x0.7x0.8cm. RIGHT LOBE MEASUREMENTS: 4.1 x 1.1 x 1.2 cmLEFT LOBE MEASUREMENTS: 4.1 x 1.2 x 1.3 cmISTHMUS MEASUREMENT: 0.1 cmRIGHT LOBE: Normal appearing thyroid gland with no dominant nodule.LEFT LOBE: Normal appearing thyroid gland with no dominant nodule.ISTHMUS: No significant abnormality noted.LYMPH NODES: 0.9 x 0.7 x 0.2 cm left level 5 lymph node with a fatty hilum, favoring benignity.OTHER: Posterior to the superior pole of the left lobe of the thyroid is a 1.3 x 1.0 x 0.6 cm hypoechoic structure with increased vascularity relative to the adjacent thyroid. This correlates with the structure seen on the outside study where it measured 1.5 x 0.7 x 0.8 cm.
1.Hypoechoic structure with increased vascularity relative to the adjacent thyroid appears extrathyroidal in location. The characteristics of this lesion support the diagnosis of a parathyroid adenoma rather than a thyroid nodule.