Fig. 4From: Thyroid nodule ultrasound: technical advances and future horizonsLongitudinal image of a 1.5-cm nodule (block arrow) detected incidentally on cervical spine MRI. This nodule is spongiform and appears confidently benign. However, a 0.6-cm ill-defined nodule alongside (arrow) is hypoechoic and contains microcalcification—FNA was performed from this nodule and confirmed papillary thyroid carcinomaBack to article page