Extrapleural solitary fibrous tumor of the thyroid gland: A case report and review of literature

Figure 1 ltrasonography shows a 4. 7 cm × 4.0 cm × 3.2 cm heterogeneously enhancing solitary nodule arising from the left lobe of the thyroid gland (white arrow head).

Figure 2 omputed tomography reveals a bulky and solid thyroid nodule at transverse view (orange arrow head).

Figure 3 istology of a surgical specimen examined under light microscope. A: Gross image; B: Hematoxylin and eosin staining (LM, × 40); C: CD34 (LM, × 400); D: Signal transducer and activator of transcription 6 (LM, × 400); E: CK (LM, × 400); F: TTF-1 (LM, × 400). LM: Light microscope.