
Clinicopathological features of low-grade malignant endolymphatic sac tumors
Keywords: ELST; endolymphatic sac tumor; CK; cytokeratin; EMA; epithelial membrane antigen; Vim; vimentin; CgA; chromogranin A; TTF-1; thyroid transcription factor-1; TG; thyroglobulin; NSE; neuron specific enolase; GFAP; glial fibrillary acidic protein; Syn; synap