An overgrowth of bland spindled cells comprises the lesion. There is no hypercellularity or atypia.
The spindle cells consist largely of fibroblasts and there is no direct connection to the overlying epithelium.
Occur in the oral cavity and near the lip. They are often asymptomatic.
Nothing or if clinically bothersome, local excision.
There is no malignant potential and excision is definitive.