PMC6370130_01
FNA and histological slides of papillary thyroid cancer. (A) Hematoxylin and eosin staining of FNA (magnification of main image, x200; magnification of the smaller image, x400), illustrating the papillary structures and intranuclear cytoplasmic pseudoinclusions (arrow). (B) Representative histological images of hematoxylin-eosin staining of sections from papillary thyroid cancer. FNA = fine needle aspiration.
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F1
The suspicious nodule was aspirated and PTC was diagnosed by fine needle aspiration cytology (FNAC) (Fig. 1A).
Histological and immunohistochemical analysis of the lymph node of the patient. (A) Hematoxylin and eosin staining of the tumor tissue (magnification of main image, x200; magnification of the smaller image, x400). Hodgkin and Reed-Sternberg cells were observed in a cellular background rich in lymphocytes, histiocytes, and eosinophils. Tumor cells were (B) CD30-positive, (C) CD15-positive, and (D) TTF-1 negative. The smaller image shows the magnified image of the area.
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F2
Surprisingly, the cervical lymph nodes were engaged by classical HL (mixed cellularity type) by histological and immunohistochemical analysis (Fig. 2).