Answer : Oral lichen planus Varying degrees of orthokeratosis and parakeratosis may be present on the surface of the epithelium The thickness of the spinous layer can also vary. The rete ridges may be absent or hyperplastic, but they classically have a pointed or “saw-toothed” shape Destruction of the basal cell layer of the epithelium (hydropic degeneration) is also evident. This is accompanied by an intense, bandlike infiltrate of predominantly T lymphocytes immediately subjacent to the epithelium Degenerating keratinocytes may be seen in the area of the epithelium and connective tissue interface and have been termed colloid, cytoid, hyaline, or Civatte bodies. Download the Oral Pathology Short cases clicking the following link Click Here
