Ancient schwannoma in posterior triangle of neck: a rare tumor case report and literature review


  • Devisha R. Gandhi GMERS Hospital and College, Vadodara, Gujarat, India
  • Naveenraj R. Department of General Surgery, GMERS Hospital and College, Vadodara, Gujarat, India



Schwannoma, Nerve sheath tumor, Neck swelling, Benign, Neurilemmoma, Peripheral nerve tumor


Ancient Schwannoma is a rare variant of Schwannomas, a type of benign nerve sheath tumor arising from Schwann cells, hence giving it its name Schwannoma. The term ancient represents the tumor undergoing degenerative changes such as calcification, hyalinization, hemorrhage, cystic degeneration and necrosis and characteristically the loss of Antoni type A tissue. This case report describes a patient having an ancient schwannoma and the management done. Detailed management and findings starting from history and extending to USG, FNAC, CT scan, MRI and excisional biopsy have been described with positive findings supporting the diagnosis like presence of degenerative material in FNAC, peripheral enhancement on CT with the classical Target sign also visible on MRI. The following case reports helps to show how to connect the dots of different findings that may start from the patient’s basic history to eventual confirmation by biopsy.


Shilpa B. Ancient schwannoma-a rare case. Ethiop J Health Sci. 2012;22:215-8.

Tahir MZ, Fatimi SH, Enam SA. Ancient schwannoma presenting as a thoracic mass. Surg Neurol. 2007;68:534-6.

Ackerman LV, Taylor FH. Neurogenous tumors within the thorax: a clinicopathological evaluation of 48 cases. Cancer. 1951;4:669-91.

Zachariades N. Schwannoma of the oral cavity: review of the literature and report of a case. J Oral Med. 1984;39:41-3.

Enzinger FM, Weiss SW. Benign tumors of peripheral nerves. Soft tissue tumors, 3rd ed. St Louis: Mosby; 1995:821-88.

Takeuchi M, Matsuzaki K, Nishitani H, Uehara H. Ancient schwannoma of the female pelvis. Abdom Imaging. 2008;33:247-52.






Case Reports