Fig. 3.

Liquid based cytology (LBC; CellPrep) findings of hyalinizing trabecular tumor (HTT) (Papanicolaou). Cohesive aggregates or syncytial fragments of tumor cells around hyaline material. (A, B) Although oval to polygonal and occasionally elongated spindle-shaped tumor cells shows enlarged nuclei with hyperchromasia and occasional intranuclear pseudoinclusion as in papillary carcinoma, tumor cells in HTT shows dispersed fine chromatin rather than pale and clear chromatin, and had infrequent nuclear membrane irregularity. (C, D) Tumor cells were arranged in a more stratified trabecular pattern than in papillary carcinoma. Columnar character of tumor cells is observed in peripheral rims of clusters.