Fig. 2From: Multiple thyroid nodules in the lung: metastasis or ectopia? a A well-circumscribed thyroid tissue in the pulmonary parenchyma (hematoxylin and eosin, 20 × magnification). b The nodule contains various-sized follicles with no cellular atypia (hematoxylin and eosin, 200 × magnification). c The immunohistochemistry staining of follicular epithelial cells showed strong positive for thyroglobulin (TG, 400 × magnification). d Negative immunohistochemistry staining for Galectin-3 (400 × magnification)Back to article page