PMC3307458_01
Tumor cells showing vacuolated and abundant granular eosinophilic cytoplasm (H and E). Left upper: Tumor cells showing eccentrically placed nuclei (H and E)
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F1
Fine needle aspiration smears revealed loose clusters and isolated population of tumor cells showing abundant finely granular and vacuolated cytoplasm [Figure 1]. The tumor cells had eccentrically placed nuclei with mild pleomorphism and inconspicuous nucleoli [Figure 1].
PMC3307458_02
Gray white tumor with pushing borders and with tiny cystic spaces filled with gray brown material
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F2
Cut section of the specimen revealed circumscribed firm grey-white lesion with tiny cystic areas measuring 5 x 3 x 2.5 cm3 in size [Figure 2].
Microcystic pattern of arrangement of tumor cells (H and E). Right lower: Tumor cells showing CEA positivity (IHC, x400)
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F3
On microscopic examination, the sections revealed tumor cells arranged in solid sheets, ducts, tubular and microcystic pattern [Figure 3]. The tumor cells showed carcinoembryonic antigen (CEA) positivity on immunohistochemistry [Figure 3].