Fig. 3From: New insight into ectopic thyroid glands between the neck and maxillofacial region from a 42-case studyDifferent histology types of ectopic thyroid. Histological images of different benign conditions found in ectopic thyroid tissues. a adenomatous hyperplasia; b multiple nodular goiter; c colloid goiter; d Hashimoto’s thyroiditis (HE, ×20)Back to article page