Figure 3. Cross-sectional Images of Invasive Primary Tumors
and Malignant Lymph Nodes
A) T1-weighted magnetic resonance imaging (MRI) of tall cell variant papillary thyroid
carcinoma (PTC) with cartilaginous invasion
B) Contrast computed tomography (CT) of complex cystic and solid lymph node
containing metastatic PTC in retropharynx (*) with calcification (arrow)
C) Contrast CT of hypervascular lymph nodes in inferior right level VI/level VII
(metastatic PTC)
D) Contrast CT of hypervascular lymph nodes in bilateral infraclavicular areas
(metastatic PTC)
E) Contrast CT demonstrating periaortic adenopathy (metastatic medullary thyroid
carcinoma)
A
B
C
D
E
