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Updated: Aug 19, 2025
Stereotactic Radiosurgery for Gynecologic Cancer
Published on: April 17, 2012
Stereotactic radiosurgery for skull base adenoid cystic carcinoma: A report of two cases
Yuki Nakamura1, Motoyuki Umekawa1, Yuki Shinya1
1Department of Neurosurgery, The University of Tokyo Hospital, Tokyo, Japan.
Background:
Adenoid cystic carcinoma (ACC) is an uncommon salivary gland tumor with a relatively favorable prognosis. However, treating ACC is potentially challenging because radical resection is usually difficult once the skull base is involved due to the adjacent critical structures. Stereotactic radiosurgery (SRS) is a less invasive alternative for surgically recalcitrant lesions.
Case Description:
We report two patients with three metastatic skull base ACCs who underwent SRS using the Gamma Knife with a marginal dose of 20 Gy to a 50% isodose line. All tumors were effectively controlled without any adverse events.
Conclusion:
This case report and our review of the literature suggest that SRS can be considered for local control of ACC invading the skull base when surgical resection is unsuitable or a postoperative residual lesion is suspected. Further, investigations on the accumulated subjects are warranted to confirm the role of SRS for the treatment of ACCs.
