Histological types

Effective

Frequency (%)

nasal polyposis

15

34.1

Reverse papilloma

9

20.5

antrochoanal polyp

8

18.2

Adénocarcinoma

3

6.8

Adenoid cystic carcinoma

3

6.8

non-Hodgkin’s lymphoma

3

6.8

Mucoepidermoid carcinoma

2

4.5

Ewing’s sarcoma

1

2.3