DZI20-240-Case-3
From MGH Learn Pathology
Extensive lymphatic invasion is present adjacent to the primary tumor mass and in the periphery of the tissue. Tumor appears to have about 10% per volume amyloid deposition. No extrathyroidal extension is noted.
Metastatic medullary thyroid carcinoma is present replacing a 1.0 cm lymph node with no overt extranodal extension.
