Langerhans cells in plexiform ameloblastoma

摘要

Ameloblastoma is a benign odontogenic neoplasm that has locally invasive behavior. Ameloblastomas can be further divided into conventional solid or multicystic, extraosseous or peripheral, desmoplastic, and unicystic types according to the clinical and radiographic features. Histologically, six histologic variants including the follicular, plexiform, acanthomatous, granular cell, desmoplastic, and basal cell ameloblastomas are found. Our previous studies have shown the Langerhans cells in several cysts and tumors of the head and neck region including a unicystic ameloblastoma.1, 2, 3, 4, 5 In this report, we demonstrated the finding of Langerhans cells among tumor epithelial cells of a plexiform ameloblastoma.