E Muraz1, A S Delemazure2, E Mourrain-Langlois2, K Bourget3, O Malard3, E Frampas2. 1. Department of radiology, hôpital de l'Hôtel-Dieu, place Alexis-Ricordeau, 44093 Nantes cedex 1, France. Electronic address: elodie.muraz@hotmail.fr. 2. Department of radiology, hôpital de l'Hôtel-Dieu, place Alexis-Ricordeau, 44093 Nantes cedex 1, France. 3. Department of ENT and head and neck surgery, hôpital de l'Hôtel-Dieu, place Alexis-Ricordeau, 44093 Nantes cedex 1, France.
Abstract
PURPOSE: The goal of this study was to assess the performances of magnetic resonance imaging (MRI) and multidetector-row computed tomography (MDCT) in determining tumor location, suggesting the specific diagnosis of tumors involving the peripharyngeal space and identifying findings suggestive for malignancy using histopathological findings as standard of reference. MATERIAL AND METHODS: The MDCT and MRI examinations of 99 patients with a total of 102 tumors located in the retropharyngeal, carotid and parapharyngeal spaces were retrospectively reviewed. MDCT and MRI examinations were independently analyzed for tumor location and specific histological type of tumor. Finally, benign or malignant criteria were evaluated. Agreement between imaging features and final histopathological diagnosis that served as the standard of reference was assessed with the Kappa statistic. RESULTS: Regarding tumor location almost perfect agreement was obtained between imaging findings and histopathological findings (kappa=0.86 and 0.92 for MDCT and MRI, respectively). Agreement between the results of imaging and histopathological findings regarding malignancy was substantial for MDCT (Kappa=0.73), MRI (Kappa=0.65). A definite histopathological diagnosis was suggested on the basis of imaging findings for 84 tumors and in agreement with the final histopathological diagnosis in 77/84 tumors (92%). CONCLUSION: MDCT and MRI provide accurate information to localize and characterize peripharyngeal tumors. These two examinations provide complementary data to identify imaging criteria that suggest malignancy.
PURPOSE: The goal of this study was to assess the performances of magnetic resonance imaging (MRI) and multidetector-row computed tomography (MDCT) in determining tumor location, suggesting the specific diagnosis of tumors involving the peripharyngeal space and identifying findings suggestive for malignancy using histopathological findings as standard of reference. MATERIAL AND METHODS: The MDCT and MRI examinations of 99 patients with a total of 102 tumors located in the retropharyngeal, carotid and parapharyngeal spaces were retrospectively reviewed. MDCT and MRI examinations were independently analyzed for tumor location and specific histological type of tumor. Finally, benign or malignant criteria were evaluated. Agreement between imaging features and final histopathological diagnosis that served as the standard of reference was assessed with the Kappa statistic. RESULTS: Regarding tumor location almost perfect agreement was obtained between imaging findings and histopathological findings (kappa=0.86 and 0.92 for MDCT and MRI, respectively). Agreement between the results of imaging and histopathological findings regarding malignancy was substantial for MDCT (Kappa=0.73), MRI (Kappa=0.65). A definite histopathological diagnosis was suggested on the basis of imaging findings for 84 tumors and in agreement with the final histopathological diagnosis in 77/84 tumors (92%). CONCLUSION: MDCT and MRI provide accurate information to localize and characterize peripharyngeal tumors. These two examinations provide complementary data to identify imaging criteria that suggest malignancy.
Authors: Poonam Joshi; Kamal Deep Joshi; Sudhir Nair; Muddasir Bhati; Deepa Nair; Munita Bal; Amit Joshi; Naveen Mummudi; Vidisha Tuljapurkar; Devendra A Chaukar; Pankaj Chaturvedi Journal: South Asian J Cancer Date: 2021-11-24