[Cytological evaluation of nasal mucosal variability in surgically treated patients with ozena].

The cytologic examination of nasal mucosa before and after the operation of ozaena were described. Significant changing of cytological images was found. In preoperative examinations the squamous metaplasia was seen, the postoperative examinations the squamous metaplasia was seen, the postoperative findings were various. From the prognostic point of view most positive was the recovery of the cylindric epithelium. The worst in the prognosis was the persisting of squamous metaplasia in all postoperative smears.