Table 3

Histopathological scores of 37 nasal mucosa specimens from 20 exposed workers.

No.Age (y)Smoking 
 (1)ExpoV (μg/m3) (2)ExpoT 
 (3)Bx no. 
 (4)Epithel 
 (5)Ulcer 
 (6)Atypia 
 (7)Basal 
 (8)Oedema 
 (9)Fibro 
 (10)Ves
 (11)Int. 
 (12)Infl. inf. 
 (13)Lymph 
 (14)Plas 
 (15)Eos 
 (16)Neut 
 (17)Glands
 (18)
(1) S, smoker; NS, non-smoker.
(2) Exposure level.
(3) Exposure duration in years.
(4) Biopsy number: A = anterior septum mucosa, B = middle turbinate.
(5) Epithelium: 1 = pseudostratified cylindric ciliated epithelium, 2 = immature squamous epithelium, 3 = mature squamous epithelium.
(6) Ulceration: 0 = absent, 1 = present.
(7) Atypia: 0 = absent, 1 = squamous atypia, 2 = mild dysplasia.
(8) Basalm = thickness of basal membrane from 0 to 3.
(9) Oedema: varying from 0 to 4.
(10) Fibrosis: varying from 0 to 4.
(11) Vessels: vasocongestion varying from 0 to 4.
(12) Intima: hypercellularity of endothelial cells varying from 0 to 4.
(13) Intensity of global inflammatory infiltrate varying from 0 to 4.
(14) Intensity of lymphohistiocytic infiltrate varying from 0 to 4.
(15) Intensity of plasmocytic infiltrate varying from 0 to 4.
(16) Intensity of eosinophilic infiltrate varying from 0 to 4.
(17) Intensity of neutrophilic infiltrate varying from 0 to 4.
(18) Glands: 0 = normal, 1 = dilatation, 2 = metaplasia, 3 = dilatation and metaplasia, 4 = hyperplasia, 5 = calcification.
139S580.213 y 11 m2788A30003231211121
2788B
223NS580.21 y 6 m2789A30121311110010
342NS338.92 y 8 m3271A21023030333220
3271B10003020212120
422S580.22 y 6 m3272A21202120212111
3272B10003040111110
527NS580.25 y 9 m3432A21102120323210
3432B21002120222110
642S580.25 y3433A20002120221210
3433B20002020333110
742NS580.23 y 9 m3434A20102110322130
3434B10002110221120
843S580.26 y0235A31102010333222
0235B20103140221012
940NS2133.62 y 2 m0633A20202130322120
0633B30002110222210
1029NS580.27 y 9 m0801A31102010222120
0801B20003030232100
1127NS580.214 y 4 m0802A2000
0802B20011030333110
1257S580.27 y 8 m0909A30002220222110
0909B20213130222230
1339NS580.215 y0910A21102120221101
0910B10003030212210
1431NS580.213 y0911A21012120323110
0911B
1529NS580.22 y 10 m0959A21012220432122
0959B10012210221110
1639S338.97 y 1 m0960A20112230332233
0960B20102231322110
1721NS2133.61 y 4 m0961A21102220332311
0961B10013220211220
1839S34.73 y 2 m1104A31002400222112
1104B31013230332214
1930S60.457 y 9 m1105A10021210222110
1105B20012120222220
2034S60.456 y1106A30003210111112
1106B10002110111010