Combined Anterior Transmaxillary (Caldwell-Luc) With an Endoscopic Endonasal Transpterygoid Approach for Resection of a Large Juvenile Nasopharyngeal Angiofibroma: 2-Dimensional Operative Video

Salomon Cohen-Cohen, Lucas P Carlstrom, Jeffrey R Janus, Jamie J Van Gompel
Operative Neurosurgery (Hagerstown, Md.) 2020 December 29
Juvenile nasopharyngeal angiofibroma (JNA) is a highly vascular benign tumor that originates in the sphenopalatine foramen and often spreads to adjacent compartments.1 Microsurgical resection with preoperative embolization remains the treatment of choice.2 We present a case of a large JNA involving multiple compartments. The patient is a 20-yr-old male who presented with long-term right nasal congestion. The MRI demonstrated a large enhancing mass that extended from the right nasal cavity and nasopharynx into the right pterygopalatine fossa (PPF), infratemporal fossa (ITF), and parapharyngeal space. Preoperative angiogram for embolization showed a highly vascular tumor with blood supply mainly from the internal maxillary artery and about 10% from a persistent mandibular branch of the internal carotid artery. Based on the UPMC JNA staging system, this tumor was a stage IV.2 A combined anterior transmaxillary (Caldwell-Luc) with an endoscopic endonasal transpterygoid approach was performed. The addition of the anterior transmaxillary approach increases the surgical freedom for traditional bipolar devices and improves the view and trajectory to more lateral structures like the PPF and ITF.3 Gross total resection was achieved without complications. The patient was discharged home with a partial V2 numbness (right superior gum) that improved with time. The endoscopic endonasal approach is a safe and effective technique even for large JNA. A multidisciplinary team consisting of an interventional radiologist, a skull base neurosurgeon, and an otorhinolaryngologist with expertise in endoscopic surgery may play a role for optimal surgical results. The patient consented for the procedure and for the video production.

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