Uveal Melanoma Metastasis to the Thyroid

Figure 3

The thyroid fine needle aspirate (FNA) showed poorly cohesive epithelioid cells in a background of blood ((a) smear, papanicolaou stain, original magnification ×400). The tumor cells had abnormal chromatin content, prominent nucleoli, and dense cytoplasm ((b) thinprep, papanicolaou stain ×600). Same appearing tumor cells on cell block ((c) H&E stain, original magnification ×600). The tumor cells were positive for cytoplasmic melan-A stain ((d) immunohistochemical stain, original magnification ×600).

(a)

(b)

(c)

(d)