GRANULAR-CELL ABRIKOSSOFF TUMORS OF THE LARYNX AND TONGUE TREATED WITH THE CARBON-DIOXIDE (CO2) LASER

Seven cases of granular cell Abrikossoff tumours of the larynx and ton gue are reported: four in the tongue and three in the larynx. All of t hese tumours were removed with the carbon dioxide (CO2) laser. The ana tomical site of the origin and clinical features of granular cell tumo urs (GCT) are not specific. Histological, light microscopic, electron microscopic (EM) and immunohistochemical studies are required for diag nosis. The histogenesis and cellular derivation of GCTs is still contr oversial. The biological potential and lack of cellular atypia define a benign process, However, it is important to take into account that t hese tumours have ill-defined borders without a capsule. Radiation the rapy has proved ineffective in the past. Surgical excision with a wide margin is required. Because of numerous advantages, for example, no b leeding, no oedema, minimal pain and quick recovery, CO2 laser removal is the treatment of choice. The authors have not seen any recurrence or complications.