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Preservation of olfaction after unilateral endoscopic approach for resection of esthesioneuroblastoma.

ABSTRACT: Objectives We present a case of olfactory preservation after a unilateral transcribriform transethmoidal endoscopic resection of esthesioneuroblastoma. We also discuss the oncologic results of endoscopic and transcranial approaches and describe the potential benefits and limitations of an endoscopic approach. Setting Single academic medical center. Participant and Design The clinical course of a 28-year-old patient who underwent endoscopic en bloc resection of esthesioneuroblastoma through a unilateral transcribriform transethmoidal approach was reviewed. Results Imaging demonstrated a left-sided nasal mass with cribriform plate involvement (Kadish C). Intraoperatively, the left olfactory bulb and epithelium were sacrificed. Negative frozen sections were obtained from the right olfactory epithelium and dura surrounding the right olfactory bulb. Reconstruction was performed using a multilayered closure of fascia, rigid buttress, and nasoseptal flap. Histology was consistent with esthesioneuroblastoma. Postoperative clinical evaluation, endoscopy, and magnetic resonance imaging demonstrated no evidence of residual or recurrent tumor at 18 months. The UPSIT smell testing revealed normal olfaction preoperatively, moderate microsomia at 3 months postoperatively, and mild microsomia at 18 months postoperatively. Conclusions Endoscopic resection of esthesioneuroblastoma has demonstrated similar oncologic control while reducing postoperative morbidity and mortality over transcranial approaches. This case reveals the potential to preserve olfaction while achieving en bloc endoscopic resection of early stage esthesioneuroblastoma.

SUBMITTER: Wessell A

PROVIDER: S-EPMC4110124 | biostudies-other | 2014 Aug

REPOSITORIES: biostudies-other

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Project description:PurposeTo assess the feasibility, safety, and clinical outcomes of an endoscopic-assisted transaxillary approach of first rib resection for thoracic outlet syndrome (TOS) and to compare the differences in demographic and clinical data between satisfactory and unsatisfactory outcomes using this approach.MethodsWe retrospectively identified patients who underwent endoscopic-assisted first rib partial resection. A transaxillary approach for the first rib resection and neurovascular decompression were undertaken under magnified visualization. Endoscopic classification of neurovascular bundle (NVB) patterns and interscalene distance (ISD) between anterior and middle scalene muscles were evaluated intraoperatively. We assessed the Roos and DASH scores.ResultsWe reviewed 131 cases of TOS (48 women and 83 men; mean age 26.2 years; range 12 to 57). Roos classification revealed 80.2% excellent or good results. DASH scores improved significantly from 40.7 ± 20.0 to 15.7 ± 19.6 (P < .001). The complication rate was low (5.3%), with 4 pneumothorax and 3 other complications. Intraoperative NVB classification revealed 30 cases of parallel type, in which the artery and nerve travel in parallel; 69 oblique types, and 30 vertical types, in which the nerve was completely behind the middle scalene muscle or abnormal band. The ISD was narrower (5.4 ± 3.6 mm) than in previous cadaveric studies. The ISD in the parallel patterns was wider than that in the vertical patterns. In the satisfactory group, we found a significantly larger number of men, younger patients, athletes, and patients with a lower preoperative DASH score.ConclusionsAn endoscopic-assisted transaxillary approach for first rib resection in TOS provides an excellent magnified visualization, safely allowing sufficient decompression of the neurovascular bundle and satisfactory surgical outcomes. Younger male athletes with TOS may be better candidates for this procedure.Level of evidenceIV, therapeutic case series.

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Preservation of olfaction after unilateral endoscopic approach for resection of esthesioneuroblastoma.

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