Cyst is lined by parakeratinized stratified squamous cells 5-8 layers in thickness with palisading of the prominent basal layer. Wall of cyst shows focal superficial ulceration with related inflammatory reaction rich in lymphocytes, plasma cells, macrophages and foreign body giant cells. No evidence of atypia or malignancy.
Well-defined unilocular radiolucent jaw lesion exhibiting buccolingual expansion and buccal wall perforation, with a primary clinical diagnosis of a jaw cyst.
Soft tissue fragments collectively measured 2.3x2x0.7 cm, totally embedded.
Jaw cyst, excision biopsy:
COMMENT:
This lesion may be locally aggressive with tendency for local recurrence.