FOLH1 and thyroid gland follicular carcinoma: PSMA expression of the tumor-associated neovasculature was found in 36/63 malignant thyroid tumors (57.1%): 18/31 papillary thyroid carcinoma, 4/10 follicular carcinoma, 4/12 medullary carcinoma, 6/6 poorly-differentiated thyroid carcinoma and 4/4 anaplastic thyroid carcinoma.