Figure 1

Gross pathological features of columnar cell variant of papillary thyroid carcinoma: (a) Well-circumscribed and partially encapsulated tumor, case 1; and (b) large tumor, diffusely infiltrative, case 9.

Gross pathological features of columnar cell variant of papillary thyroid carcinoma: (a) Well-circumscribed and partially encapsulated tumor, case 1; and (b) large tumor, diffusely infiltrative, case 9.