Coarse calcifications are found more frequently in papillary carcinoma compared to benign lesions. This finding has only limited practical importance. In our study the difference did not reach the level of significance. Nevertheless, in certain cases the presence of microcalcification is of help in the diagnosis, e.g. in the last case demonstrated above. In this Hashimoto patient, several hypoechogenic lesions were present. One of them proved to be a papillary carcinoma; it was the only one which contained coarse calcifications.