Research Article

Langerhans Cells, T Cells, and B Cells in Oral Lichen Planus and Oral Leukoplakia

Table 1

Demographic and clinical characteristics of the study population.

Oral lichen planus (OLP; N = 14)Oral leukoplakia (LPL; N = 13)

Females/Males8/66/7
Age in years (mean; median)51 (51.5)57.4 (57.5)
Clinical subtypesReticular; N = 7Homogeneous; N = 6
Erythematous; N = 5Nonhomogeneous (nodular); N = 6
Ulcerative; N = 1Not specified; N = 1
Papillary; N = 1

Biopsy sitesBuccal mucosa; N = 12Tongue; N = 4
Gingiva; N = 1Buccal mucosa; N = 3
Mucobuccal vestibule; N = 1Floor of the mouth; N = 3
Lower labial mucosa; N = 1
Gingiva; N = 1
Palatal mucosa; N = 1

Histopathological diagnosisLichenoid reaction; N = 14Benign hyperkeratosis; N = 11
Lichenoid reaction; N = 2

Systemic diseases (%)7 (50%)8 (62%)
 Cardiovascular disorders35
 Autoimmune disorders30
 Diabetes mellitus type 212
 Skin disorders30
 Respiratory disorders01
 Others13
Allergy4 (28.5%)0
Tobacco use
 Cigarette smoking (%)2 (14.3%)5 (38.5%)
 Swedish snuff (%)2 (14.3%)2 (15.4%)

Hypothyroidism, Crohn´s disease, psoriatic arthritis. Psoriasis, eczema.