Fig. 2
From: Aberrant intrathyroidal lymph node metastasis in classical papillary thyroid carcinoma
Histopathological examination. a A total thyroidectomy with nodular appearance. b Section from the right thyroid shows a well-demarcated tumour area with partly encapsulated (arrow) exhibiting tumour in papillary patterns. (H&E, × 40). c The tumour cells with classical features of papillary thyroid carcinoma showing papillae with fibrovascular core, nuclear clearing and grooving. (H&E, × 400). d A well-encapsulated intrathyroidal lymph node with tumour cells infiltration. The tumour cells forming thyroid follicles containing a dense eosinophilic colloid. (H&E, × 100)