Characteristics | Case no. (percent) |
---|---|
Gender | |
Female | 6 (8.3 %) |
Male | 66 (91.7) |
Age (years) | |
54.6 ± 11.2 | |
Topographic location | |
Lip | 2 (2.8 %) |
Buccal | 55 (76.4 %) |
Gum | 1 (1.4 %) |
Tongue | 6 (8.3 %) |
Palate | 2 (2.8 %) |
Floor of the mouth | 2 (2.8 %) |
Retromolar | 4 (5.5 %) |
Alcohol drinking | |
No | 29 (40.3 %) |
Ex-drinker | 23 (31.9 %) |
Yes | 20 (27.8 %) |
Cigarette smoking | |
No | 14 (19.4 %) |
Ex-smoker | 19 (26.4 %) |
Yes | 39 (54.2 %) |
Betel quid chewing | |
No | 21 (29.2 %) |
Ex-chewer | 36 (50.0 %) |
Yes | 15 (20.8 %) |
History of oral cancer | |
No | 45 (62.5 %) |
Yes | 27 (37.5 %) |
Intraepithelial microvasculature pattern by NBI | |
IPCL type I (regularly distributed arborescent pattern of IPCL) | 6 (8.3 %) |
IPCL type II (tortuous and dilated pattern of IPCL) | 38 (52.8 %) |
IPCL type III (twisted and elongated pattern of IPCL) | 25 (34.7 %) |
IPCL type IV (angiogenesis and destructive pattern of IPCL) | 3 (4.2 %) |
Pathological diagnosis | |
Squamous hyperplasia | 12 (16.7 %) |
Low-grade dysplasia | 22 (30.6 %) |
Intermediate-grade of dysplasia | 17 (23.6 %) |
High-grade of dysplasia/carcinoma in situ | 17 (23.6 %) |
Squamous cell carcinoma | 4 (5.5 %) |