Granular cell tumor in two oral anatomic sites.

Granular cell tumor (GCT) is an uncommon benign soft tissue neoplasm, which usually presents as a solitary nodule, appearing especially in the tongue. There are few cases of multiple oral GCT in the English-language literature, with only three cases reported in the last 20 years. This report describes a case of two oral GCT in a young patient and provides a literature review from 1995 to 2015. Clinical characteristics of the reviewed cases were retrieved and compared with the present case. Exceptionally, the current case was the only one that occurred in an adolescent and solely affected the oral cavity. Besides the oral cavity, the other cases also observed GCT lesions in the skin. Although rare, it is important to know multiple oral GCT clinical and histopathological characteristics so they can be correctly diagnosed, treated and followed up.