Salivary gland tumor medical therapy

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Medical Therapy

Stage Grade Treatment
Stage I major salivary gland cancer Low grade tumor
  • Surgery alone.
  • Postoperative radiation therapy should be considered when the resection margins are positive.
High grade tumor
  • Localized high-grade salivary gland tumors that are confined to the gland in which they arise may be cured by radical surgery alone
  • Postoperative radiation therapy may improve local control and increase survival rates for patients with high-grade tumors, positive surgical margins, or perineural invasion
Stage II major salivary gland cancer Low grade tumors
  • Surgery alone or with postoperative radiation therapy, if indicated, is appropriate
  • Chemotherapy should be considered in special circumstances, such as when radiation therapy or surgery is refused
High grade tumors
  • Localized high-grade salivary gland tumors that are confined to the gland in which they arise may be cured by radical surgery alone
  • Postoperative radiation therapy may improve local control and increase survival rates for patients with high-grade tumors, positive surgical margins, or perineural invasion
  • Fast neutron-beam radiation therapy or accelerated hyperfractionated photon-beam schedules reportedly are more effective than conventional x-ray therapy in the treatment of patients with inoperable, unresectable, or recurrent malignant salivary gland tumors
Second External beam radiation therapy
Third Periocular carboplatin therapy
Fourth Enucleation
Without vitreous seeding
Tumor >2 disc diameters in size First Systemic or intra-arterial chemotherapy
Plus Concurrent laser ablation or cryotherapy
Second External beam radiation therapy
Third Periocular carboplatin therapy
Fourth Enucleation
Tumor 2 disc diameters or less in size First Focal laser ablation alone
Second Systemic or intra-arterial chemotherapy
Plus Concurrent laser ablation or cryotherapy
Third External beam radiation therapy
Fourth Periocular carboplatin therapy
Fifth Enucleation
Metastatic disease First Multimodal therapy
Recurrence
Post globe-salvaging therapy First Brachytherapy
Post enucleation First External beam radiation therapy
Adjunct Systemic chemotherapy

If the cancer is high-grade, treatment may include the following for all the 4 stages of tumor:

  • Radiation therapy may be given after surgery.
  • Fast neutron radiation therapy.
  • Radiation therapy as palliative therapy to relieve symptoms and improve quality of life.
  • A clinical trial of radiation therapy and/or radiosensitizers.
  • A clinical trial of chemotherapy.

For stages I, II and III surgery is the main stay of treatment.

Radiation Therapy

Fast neutron therapy has been used successfully to treat salivary gland tumors,[1] and has shown to be significantly more effective than photons in studies treating unresectable salivary gland tumors.[2][3]

References

  1. Douglas JD, Koh WJ , Austin-Seymour, M, Laramore GE. Treatment of Salivary Gland Neoplasms with fast neutron Radiotherapy. Arch Otolaryngol Head Neck Surg Vol 129 944-948 Sep 2003
  2. Laramore GE, Krall JM, Griffin TW, Duncan W, Richter MP, Saroja KR, Maor MH, Davis LW. Neutron versus photon irradiation for unresectable salivary gland tumors: final report of an RTOG-MRC randomized clinical trial. Int J Radiat Oncol Biol Phys. 1993 Sep 30;27(2):235-40.
  3. Krüll A, Schwarz R, Engenhart R, et al.: European results in neutron therapy of malignant salivary gland tumors. Bull Cancer Radiother 83 (Suppl): 125-9s, 1996

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