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Classification of tumors by imaging diagnosis and preoperative fine‐needle aspiration cytology in 120 patients with tumors in the parapharyngeal space
Author(s) -
Matsuki Takashi,
Miura Kouki,
Tada Yuichiro,
Masubuchi Tatsuo,
Fushimi Chihiro,
Kanno Chihiro,
Takahashi Hideaki,
Kamata Shinetsu,
Okamoto Isaku,
Miyamoto Shunsuke,
Yamashita Taku
Publication year - 2019
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.25552
Subject(s) - parapharyngeal space , medicine , schwannoma , pleomorphic adenoma , radiology , medical diagnosis , fine needle aspiration cytology , cytology , histopathology , fine needle aspiration , pathology , biopsy , salivary gland
Background Tumors in the parapharyngeal space are rare, and preoperative diagnosis is difficult because of anatomical and histological complexity. Methods To evaluate the usefulness of preoperative diagnosis, we compared the classification of tumor localization in the prestyloid and retrostyloid compartments by imaging and preoperative cytological diagnosis by fine‐needle aspiration cytology with the postoperative histopathological diagnosis in 120 patients with tumors in the parapharyngeal space. Results Tumors were located in the prestyloid and retrostyloid compartments in 68 and 52 patients, respectively. The majority of histopathological diagnoses in the prestyloid and retrostyloid compartments were pleomorphic adenoma and schwannoma, respectively. All malignant tumors were in the prestyloid compartment. The preoperative cytological diagnostic rate for benign or malignant tumor was 95.2%, which was not inferior to that for other head and neck lesions. Conclusion Our results suggested that the preoperative classification of tumor localization and cytological diagnosis improved the accuracy of presumptive diagnosis.