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Retropharyngeal lymph node metastasis from olfactory neuroblastoma: a report of two cases
Authors:Hyun Jik Kim  Jinna Kim  Joo-Heon Yoon
Affiliation:(1) Department of Otolaryngology Head and Neck Surgery, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-752, South Korea;(2) Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea;(3) Department of Radiology, Yonsei University College of Medicine, Seoul, South Korea
Abstract:
Olfactory neuroblastoma is a rare, malignant neoplasm arising from the olfactory epithelium. It has an aggressive biological behavior that is characterized by local recurrence, atypical distant metastasis, and poor long-term prognosis. The incidence of cervical lymph node metastasis in olfactory neuroblastoma is variable, and treatment modalities are controversial. Moreover, few reports have been published concerning retropharyngeal lymph node metastasis from olfactory neuroblastoma. We present two cases of olfactory neuroblastoma with retropharyngeal lymph node metastasis. In addition, we provided a review of the current literature regarding olfactory neuroblastoma and retropharyngeal lymph node metastasis from olfactory neuroblastoma.
Keywords:Olfactory neuroblastoma  Retropharyngeal lymph node
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