Table 2 Clinical course of thyroid abnormalities
Initial presentation | N | Median time from diagnosis of cancer (years) | Thyroid abnormalities (transient case) | |||
|---|---|---|---|---|---|---|
Brain tumors | No Brain tumors | Irradiation group 1 | Chemo only or irradiation group 2 | |||
Total | 107 | 3.3(0–14.8) | 49(11) | 58(34) | 73(24) | 34(21) |
Normal freeT4, TSH 4.5–10 mU/L | 50 | 5.5(0–14.8) | 13(9) | 37(26) | 28(18) | 22(17) |
Normal freeT4, TSH ≥ 10 mU/L | 15 | 2.1(0–5.0) | 6(1) | 9(4) | 13(4) | 2(1) |
Decreased freeT4, normal TSH | 16 | 0.5(0–14.2) | 16(0) | 0(0) | 13(0) | 3(0) |
Decreased freeT4, TSH 4.5–10 mU/L | 2 | 0/0.1 | 2(0) | 0(0) | 2(0) | 0(0) |
Decreased freeT4, TSH ≥ 10 mU/L | 3 | 2.2(0–3.4) | 1(0) | 2(0) | 1(0) | 2(0) |
Autoimmune thyroiditis | 5 | 1.0(0.7–4.7) | 1(1) | 4(2) | 2(1) | 3(2) |
Secondary thyroid cancer | 6 | 7.5(1.0–10.5) | 0(0) | 6(2) | 4(1) | 2(1) |
Unknown | 10 | 0 | 10(0) | 0(0) | 10(0) | 0(0) |