An encapsulated tumor with organoid pattern of nests of rounded large epithelial like cells with abundant granular or clear cytoplasm. Cell borders are ill-defined. The nests are separated by a network of fibrovascular trabeculae. Some cells show enlarged nuclei but no evidence of mitotic activity. Capsule of tumor looks attenuated
in many foci with evidence of invasion by tumor cell nests.
Lt. neck swelling.
Soft tissue mass measured 3.8x3x2 cm, totally embedded.
Lt. Neck swelling, Excision biopsy:
Comment: