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  • Title: [A clinical study of cases diagnosed as being oropharyngeal carcinoma after cervical mass extirpation/biopsy].
    Author: Mizumachi T, Kano S, Sakashita T, Hatakeyama H, Homma A, Fukuda S.
    Journal: Nihon Jibiinkoka Gakkai Kaiho; 2014 Dec; 117(12):1463-70. PubMed ID: 25946828.
    Abstract:
    In the case of oropharyngeal carcinoma, patients may present with symptoms similar to cervical lymphadenopathy, and the primary lesion may only be diagnosed after cervical mass extirpation/biopsy. We retrospectively analyzed the clinical course in 11 oropharyngeal carcinoma patients that were diagnosed after cervical mass extirpation/biopsy between 1998 and 2013. Before the diagnosis was made of oropharyngeal carcinoma, a cervical lymph node biopsy was performed in six patients; the lymph node was extirpated due to an initial diagnosis of lateral cervical cyst in four patients; and neck dissection was performed due to an initial diagnosis of primary unknown carcinoma in one patient. The primary tumor site in the oropharynx was the palatine tonsil in six patients and the lingual tonsil in five patients. Five of six patients with palatine tonsil carcinoma and three of five patients with lingual tonsil carcinoma were found to be positive for human papillomavirus (HPV). The duration from cervical lymph node extirpation/biopsy to final diagnosis was 1 to 13 months. All patients finally underwent radiation therapy or chemoradiotherapy, and they had no recurrence or metastasis. As the incidence of HPV-related oropharyngeal carcinoma increases, the number of oropharyngeal carcinomas assumed to be cervical lymphadenopathy due to the presenting symptoms may increase. It is important to investigate the oropharynx thoroughly so as to adequately differentiate the possibility of oropharyngeal carcinoma from that of cervical lymphadenopathy. Metastatic lymph nodes might present as cysts in cases of oropharyngeal carcinoma, it is therefore necessary to take the potential for metastatic lymph nodes in the oropharyngeal cancer into consideration when differentiating this disease from cervical cyst-shaped lesions.
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