Female 29 yo, getting big neck faster.
Last year she got some small colloidal cyst on right lobe. But at this time ultrasound detected hypoechoic mass on right lobe, #34x60x24mm with many small cysts inside, calcified and hyperechoic nodules and vascular network between cysts which was thought to be colloidal cysts.
With elastoultrasound ARFI, lesion was harder than the surrounding, black color on VTI and blue code on Esie Touch. Elastographic velocity was higher , V=2.7à 3.14 m/s than the surrounding, v=1.28m/s. It suggested a malignant lesion on elastographic US.
Microscopic result of FNAC was PTC.
Discussion: An interesting case of PTC with appearance of many small cysts which make confusion to colloidal cysts. Clinical findings which helped to diagnose are tumor getting bigger faster on one lobe of thyroid. And ARFI elastoUS keeps the predictive role in diagnosing exactly for this case.