File
Authors
Keywords
malignant oncocytoma
parotid gland
parotidectomy
Abstract
We reported a case of malignant oncocytoma arising from the right parotid gland through neck metastasis. In 1992, the patient was treated by surgical removal of a lymph-node mass, diagnosed as malignant unclassified tumor. In 1995, a right parotid gland tumor and right neck lymph-node masses occurred. We suspected the patient of having a malignant tumor of the right parotid gland through neck metastasis, especially recurrence of the previous clear-cell carcinoma. In July 1995, a right-side total parotidectomy and a neck dissection were carried out. A definite diagnosis was based on histological findings of the resected tumor as malignant oncocytoma: large eosinophilic granular cells were detected, and electron-microscopically, cytoplasms of tumor cells were rich in mitochondria with no encapsulation, perineural and intravascular invasion, and metastases to the cervical lymph nodes. Additional therapy such as chemotherapy and irradiation were not applied. To date, he has had no evidence of disease for 6 years.
Publisher
Tottori University Faculty of Medicine
Content Type
Journal Article
ISSN・ISBN
1346-8049
NCID
AA00892882
Journal Title
Yonago Acta medica
Current Journal Title
Yonago Acta medica
Volume
44
Issue
2
Start Page
125
End Page
130
Published Date
2001-07
Text Version
Publisher
Rights
Yonago Acta medica 編集委員会
Citation
Yonago Acta medica. 2001, 44(2), 125-130
Department
Faculty of Medicine/Graduate School of Medical Sciences/University Hospital
Language
English