[01] Bahiya Elrashid Khalid Hamad, Department of Oral and Maxillofacial Surgery, Resident at Sudanese Medical Specialization Board, Khartoum, Sudan. [02] Ahmed Eldawi, Department of Oral and Maxillofacial Surgery, Khartoum Teaching Dental Hospital, Khartoum, Sudan. [03] Riham Alsagh, Department of Oral and Maxillofacial Surgery, University of Khartoum, Khartoum, Sudan. [04] Nazik Omer Elhassan, Department of Oral Pathology, University of Khartoum, Khartoum, Sudan.

Background: Neurilemmoma, neurinoma, perineural fibroblastoma or Schwann cell tumour, is a rare encapsulated benign tumour originates from schwann cells and it is of unknown etiology. About 11% - 45% of all schwannomas are found in the head and neck. The tumour can occur anywhere from the base of the skull to the thoracic inlet, but is commonly seen in the mid neck. It can rarely be seen orally as it makes up 0.04% of all intraoral tumours. Case information: We present a 60-year-old female complained of a 15-year-old tumour on the tip and right border of the tongue. Methods: Histopathological and immunohistochemistry tests for both incisional and excisional biopsies were examined for a definitive diagnosis, because clinically the tumour appears similar to reactive and other soft tissue neoplasms. Results: Surgical excision with safety margin done under general anesthesia without recurrence. A diathermy was used to mark and coagulate the incision. Conclusion: Ancient schwannoma is a rare benign encapsulated tumour of long duration. Its diagnosis is confirmed by histopathological and immunohistochemistry testing with S100 and vimentin. A magnetic resonance imaging is the choice of imaging for an accurate measurement of the tumour. Ancient schwannoma is treated surgically with total pericapsular surgical excision of the tumour and it has excellent outcomes and no recurrence.

Tongue Tumour, Neurilemmoma, Neurinoma, Perineural Fibroblastoma, Schwann Cell Tumour, Lingual Schwannoma, Ancient Schwannoma

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