A. Wrong, the lesion doesn’t show palisading of the peripheral cells nor peripheral clefting.
C. Wrong, note the eosinophilic granular cells and the intracytoplasmic colloid-like material. Moreover, calponin was negative.
Right, the lesion was composed of lobules of tumor cells, that were arranged in papillary cystic and microcystic patterns. Many cells showed eosinophilic granular and vacuolated cytoplasm and intracytoplasmic colloid material.