Yu-Lan Mary Ying1, Jonas T Johnson, Eugene N Myers. 1. Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh, Eye & Ear Institute, 203 Lothrop Street, Suite 500, Pittsburgh, PA 15213, USA.
Abstract
BACKGROUND: Our objective was to evaluate the outcome of patients treated for squamous cell carcinoma (SCC) of the parotid gland. METHODS: We conducted a retrospective chart review of the tumor registry from 1982 through 2003 at a tertiary referral medical center. Patients with SCC of the parotid gland were identified and followed for a minimum of 2 years after therapy. RESULTS: SCC involving the parotid was identified in 66 patients. The tumor was a metastasis from a known primary site in 41 patients (62%). In 16 patients (24%), no other primary site was identified, and the tumor may have originated in the parotid gland. Nine patients (14%) were undetermined. Therapy frequently included surgery. The integrity of the facial nerve was preserved in 92% of surgical patients. Only eight patients initially had clinical evidence of cervical metastasis; however, cervical metastasis was identified in 25 patients (44%), changing the course of therapy. CONCLUSION: SCC of the parotid gland was metastatic from a known primary tumor in more than half of the patients. The most common site of the primary tumor was a cutaneous malignancy of the head and neck. The high incidence of cervical lymph node involvement underscores the diagnostic and therapeutic importance of neck dissection with parotidectomy. Copyright 2006 Wiley Periodicals, Inc.
BACKGROUND: Our objective was to evaluate the outcome of patients treated for squamous cell carcinoma (SCC) of the parotid gland. METHODS: We conducted a retrospective chart review of the tumor registry from 1982 through 2003 at a tertiary referral medical center. Patients with SCC of the parotid gland were identified and followed for a minimum of 2 years after therapy. RESULTS:SCC involving the parotid was identified in 66 patients. The tumor was a metastasis from a known primary site in 41 patients (62%). In 16 patients (24%), no other primary site was identified, and the tumor may have originated in the parotid gland. Nine patients (14%) were undetermined. Therapy frequently included surgery. The integrity of the facial nerve was preserved in 92% of surgical patients. Only eight patients initially had clinical evidence of cervical metastasis; however, cervical metastasis was identified in 25 patients (44%), changing the course of therapy. CONCLUSION:SCC of the parotid gland was metastatic from a known primary tumor in more than half of the patients. The most common site of the primary tumor was a cutaneous malignancy of the head and neck. The high incidence of cervical lymph node involvement underscores the diagnostic and therapeutic importance of neck dissection with parotidectomy. Copyright 2006 Wiley Periodicals, Inc.
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