Case Report
Long-Term Follow-Up of a Child with Autoimmune Thyroiditis and Recurrent Hyperthyroidism in the Absence of TSH Receptor Antibodies
Table 1
Initial and follow-up laboratory studies.
| Date | Age (yr) | Free T4 (0.9–1.4 ng/dL) | TSH (0.5–4.3 mIU/L) | T3 (94–213 ng/dL) | TPO (<35 IU/mL) | TG Ab (<20 IU/mL) | TSI (<140%) |
| 07/17/2006 | 4 6/12 | 1.1 | 7.94 | 140 | | | | 08/24/2006 | 4 7/12 | 1.1 | 9.26 | | <10 | 85 | | 08/29/2007 | 5 7/12 | 1.05 | 4.49 | | | | | 10/23/2008 | 6 8/12 | 1.39 | 3.21 | | | | | 03/6/2009 | 7 1/12 | 2.8 | <0.01 | | <10 | 312 | 90 | 04/30/2009 | 7 2/12 | 1.2 | | 128 | <10 | 279 | 107 | 12/2/2009 | 7 10/12 | 1.0 | 3.34 | 112 | <10 | | 96 | 06/16/2010 | 8 4/12 | 1.3 | 2.23 | 110 | <10 | 61 | 100 | 12/28/2011 | 9 10/12 | 2.1 | 0.02 | | | | 39 | 03/9/2012 | 10 1/12 | 1.0 | 0.24 | 77 | 12 | 399 | | 07/5/2012 | 10 4/12 | 1.1 | 6.32 | | | | | 02/6/2014 | 11 11/12 | 1.5 | 1.77 | 102 | <10 | 59 | 43 |
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Normal ranges in parentheses.
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