XXXX : a clinicopathologic study of 67 cases.

@entity1 @entity168 @entity1185 @entity1179 @entity957 @entity189
The clinical and pathologic features of @entity1185 were studied in 67 @entity1 . There were 40 male and 27 female @entity1 , and the mean age at diagnosis was 49 +/- 17.9 ( @entity168 ) years. Nasal obstruction or perception of a nasal mass was the most common presenting symptom; mean duration of symptoms was 10.8 +/- 15.8 ( @entity168 ) months. Almost equal numbers of @entity1185 had predominantly endophytic (inverted) (n = 32) and predominantly exophytic (fungiform) (n = 30) patterns, and five had mixed patterns. Multiple morphologic variables were evaluated in the initial specimens, including cytologic atypia and number of mitotic figures; there were no statistically significant correlations between these variables and biologic behavior. Of the 39 @entity1 for whom follow-up information was available (mean follow-up period, 38.6 months), six @entity1 (all with predominantly endophytic patterns) had copresented with @entity1185 and @entity189 . The remaining 33 @entity1 initially had only benign @entity1185 . In these 33 @entity1 , recurrences developed in 11 (33 per cent), local invasion in two (6 per cent) (both with @entity1179 ), and @entity957 in one (3 per cent) (with an @entity1179 ). Three @entity1 had evidence of disease when last examined, and two @entity1 had died of disease (both after copresentation with @entity1185 and @entity189 ). The continued use of the term @entity1179 (endophytic pattern) as a specific subset of @entity1185 is recommended, as all serious complications, including progression to local invasion, copresentation with @entity189 , and development of @entity189 , were associated with these lesions.
