caa a22 4500 606182616 CHVBK 20210128100817.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00405-014-2965-y doi (NATIONALLICENCE)springer-10.1007/s00405-014-2965-y Two types of lateral extension in juvenile nasopharyngeal angiofibroma: diagnostic and therapeutic management [Elektronische Daten] [Anna Szymańska, Marcin Szymański, Elżbieta Czekajska-Chehab, Małgorzata Szczerbo-Trojanowska] Juvenile nasopharyngeal angiofibroma is a benign, locally aggressive nasopharyngeal tumor. Apart from anterior lateral extension to the pterygopalatine fossa, it may spread laterally posterior to the pterygoid process, showing posterior lateral growth pattern, which is less common and more difficult to identify during surgery. We analyzed the routes of lateral spread, modalities useful in its diagnosis, the incidence of lateral extension and its influence on outcomes of surgical treatment. The records of 37 patients with laterally extending JNA treated at our institution between 1987 and 2011 were retrospectively evaluated. Computed tomography was performed in all patients and magnetic resonance imaging in 17 (46%) patients. CT and MRI were evaluated to determine routes and extension of JNA lateral spread. Anterior lateral extension to the pterygopalatine fossa occurred in 36 (97%) patients and further to the infratemporal fossa in 20 (54%) patients. In 16 (43%) cases posterior lateral spread was observed: posterior to the pterygoid process and/or between its plates. The recurrence rate was 29.7% (11/37). The majority of residual lesions was located behind the pterygoid process (7/11). Recurrent disease occurred in 3/21 patients with anterior lateral extension, in 7/15 patients with both types of lateral extensions and in 1 patient with posterior lateral extension. JNA posterior lateral extension may spread behind the pterygoid process or between its plates. The recurrence rate in patients with anterior and/or posterior lateral extension is significantly higher than in patients with anterior lateral extension only. Both CT and MRI allow identification of the anterior and posterior lateral extensions. The Author(s), 2014 Computed tomography nationallicence Infratemporal fossa nationallicence Juvenile nasopharyngeal angiofibroma nationallicence Lateral extension nationallicence Magnetic resonance imaging nationallicence Pterygopalatine fossa nationallicence Szymańska Anna Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut Szymański Marcin Department of Otolaryngology Head and Neck Surgery, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut Czekajska-Chehab Elżbieta Department of Radiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut Szczerbo-Trojanowska Małgorzata Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/1(2015-01-01), 159-166 0937-4477 272:1<159 2015 272 405 https://doi.org/10.1007/s00405-014-2965-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-2965-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Szymańska Anna Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut NATIONALLICENCE 700 1- Szymański Marcin Department of Otolaryngology Head and Neck Surgery, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut NATIONALLICENCE 700 1- Czekajska-Chehab Elżbieta Department of Radiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut NATIONALLICENCE 700 1- Szczerbo-Trojanowska Małgorzata Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Jaczewskiego 8, 20-954, Lublin, Poland aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/1(2015-01-01), 159-166 0937-4477 272:1<159 2015 272 405