Characteristic ultrasound properties of malignant lymph nodes - the preserved basic structure of the primary tumor
Medullary carcinoma - Case 16
The primary focus in the thyroid
The metastasis in the lymph node

Note characteristic patchy hyperechogenic granules both in the thyroid and in the lymph node.

Papillary carcinoma - Case 71
The primary focus in the thyroid
The metastasis in the lymph node


Both the primary and the metastatic focus present cystic degeneration and a minimally-moderately hypoechogenic solid part.
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