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. 2020 Feb 27;2020:4150735. doi: 10.1155/2020/4150735

Table 4.

IGFR1 IHC expression in PPGLs.

Negative (n (%)) Weakly positive (n (%)) Intermediately positive (n (%)) Strongly positive (n (%)) X 2 P
Benign PHEO (n = 96) 73 (76.0) 22 (22.9) 1 (1.1) 0 (0)
Benign PGL (n = 38) 13 (34.2) 8 (21.1) 6 (15.8) 11 (28.9) 75.693 <0.001
Potentially malignant PPGL (n = 78) 12 (15.4) 24 (30.8) 14 (17.9) 28 (35.9)
Malignant PPGL (n = 14) 2 (14.3) 0 (0) 3 (21.4) 9 (64.3)