1. Benign alveolar ridge keratosis (oral lichen simplex chronicus): A distinct clinicopathologic entity 
Easwar Natarajan, BDS, DMSc, Sook-Bin Woo, DMD 
Journal of the American Academy of Dermatology 
Volume 58, Issue 1, Pages (January 2008)
DOI: /j.jaad
Copyright © 2008 American Academy of Dermatology, Inc. Terms and Conditions

2. Fig 1
Age distribution of benign alveolar ridge keratosis (BARK) lesions. Majority of BARK lesions occur between fifth and seventh decades of life.
Journal of the American Academy of Dermatology  , DOI: ( /j.jaad )
Copyright © 2008 American Academy of Dermatology, Inc. Terms and Conditions

3. Fig 2
Benign alveolar ridge keratosis on right mandibular retromolar pad area (A) and left mandibular edentulous alveolar ridge (B).
Journal of the American Academy of Dermatology  , DOI: ( /j.jaad )
Copyright © 2008 American Academy of Dermatology, Inc. Terms and Conditions

4. Fig 3
Histopathologic features of benign alveolar ridge keratosis (BARK) (oral lichen simplex chronicus [LSC]). A, BARK is characterized by moderate to marked hyperorthokeratosis, mild surface papillomatosis, and acanthosis with wedge-shaped hypergranulosis (B) (arrows) and long, tapered, anastomosing rete pegs. C, Note hyperorthokeratosis and wedge-shaped hypergranulosis. D, LSC of skin. (Hematoxylin-eosin stain; original magnification: A, ×4; B and D, ×10; C, ×40.)
Journal of the American Academy of Dermatology  , DOI: ( /j.jaad )
Copyright © 2008 American Academy of Dermatology, Inc. Terms and Conditions