A 9 yo female presented with headache, dizziness, constipation, cold intolerance, and found to have multiple thyroid nodules with largest measuring1.9x1.2x0.9cm. The flow cytometry of the FNA of the thyroid nodule showed the following.
K/L ratio of P3: 12:1; K/L ratio of P2: 1.65:1. CD10+ T cells are increased.