Giant Cervicothoracic Ganglioneuroma Misdiagnosed as Neurofibroma on Core Needle Biopsy: Transcervical Resection and Postoperative Neurological Sequelae: A Case Report

ABSTRACT Ganglioneuroma (GN) may be misdiagnosed as neurofibroma when core needle biopsy samples only contain Schwannian stroma without mature ganglion cells. Even giant cervicothoracic GNs may be resectable through a transcervical approach alone. Recurrent laryngeal nerve palsy and Horner syndrome are foreseeable, anatomically predictable risks requiring dedicated preoperative counseling.