Table 2.

Procedures and histopathological examination results.

Date:	Procedure:	Histopathological result:
17.01.2020	Micorlaryngoscopy (cold steel sampling)	High-grade dysplasia of the epithelium
14.02.2020	Micorlaryngoscopy (cold steel sampling)	Neuroendocrine carcinoma suspicion; final result: nasopharyngeal carcinoma, nonkeratinizing undifferentiated carcinoma, Schmincke pattern
17.03.2020	Micorlaryngoscopy (laser CO2 resection)	Nasopharyngeal carcinoma, nonkeratinizing undifferentiated carcinoma, Schmincke pattern; the histopathological examination revealed the immunochemistry markers in tumor cells: p16 -, CKPAN +, p63 +, p40 -, LCA -, Ki67 in 80% of cells, CD56 +, synaptophysin -, chromogranin A -, TTF1 -, CK7 +