Granular cell tumor (GCT) is a rare benign neoplasm that is observed in oral cavity mostly in head-neck part or especially on the tongue. This lesion is generally observed as a solitary nodule with unidentified boundaries and it may reside in different areas of the body. The presented case is a 35-year-old male patient who referred with a problem of indolent lesion on his tongue. Excisional biopsy has been applied to the patient under general anesthesia. There was no complication observed in surgical operation and during post-operative period. There were no symptoms observed on the sixth month of post-operative period. In this paper, a case that has unidentified boundary of tongue placement which includes cystic lesion and identified by a GHT diagnosis has been presented by reviewing the up-to-date studies.