Decompression of the optic nerve within the optic canal is indicated for compressive visual decline. The two most common approaches utilized for optic canal decompression are a medial approach with an endoscopic endonasal approach and a lateral approach with a craniotomy. Our study is a cadaveric anatomical study comparing the length and circumference of the orbit decompressed via an endoscopic endonasal approach versus a frontotemporal craniotomy. Five cadaveric specimens were utilized. Predissection computed tomography (CT) scans were performed on each specimen. On each specimen, a standard frontotemporal craniotomy with anterior clinoidectomy and superolateral orbital decompression was performed on one side and an endoscopic endonasal approach with medial wall decompression was performed on the contralateral side. Post-dissection CT scans were performed. An independent radiologist provided measurements of the length (mm) and circumference (degrees) of optic canal decompression bilaterally. The mean length of optic canal decompression for open and endoscopic approach was 13 mm (range 12-15 mm) and 12.4 mm (range 10-16 mm), respectively. The mean circumference of decompression for open and endoscopic approaches was 252.8 degrees (range 205-280 degrees) and 124.6 degrees (range 100-163 degrees), respectively. The endoscopic endonasal and the transcranial approaches provide a similar length of optic canal decompression, but the transcranial approach leads to greater circumferential decompression. The endoscopic endonasal approach has the benefit of being minimally invasive, though. Ultimately, the surgical approach decision should be based on the location of the pathology and the surgeon's comfort.
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http://dx.doi.org/10.1055/s-0041-1729909 | DOI Listing |
Cancers (Basel)
December 2024
Department of Otolaryngology, Head and Neck Surgery, Helios HSK Wiesbaden, 65199 Wiesbaden, Germany.
: Sinonasal malignancies are rare and highly diverse cancers that pose significant diagnostic challenges due to their variable histological features and complex anatomical locations. Accurate diagnosis is critical for guiding treatment, yet conventional methods often require multiple biopsies. This study aimed to evaluate the potential of confocal laser endomicroscopy (CLE) for real-time imaging of sinonasal tumors to characterize specific features of different entities and improve diagnostic precision.
View Article and Find Full Text PDFJ Clin Neurosci
January 2025
Division of Neurosurgery , University of British Columbia, Vancouver, British Columbia, Canada.
Background: Sinonasal malignancies, in which squamous cell carcinomas are the most common are rare and difficult to treat given the location and anatomical structures involved. Sinonasal malignancies often present late due to non-specific and benign symptoms. Partial resections are often associated with poorer outcomes [1].
View Article and Find Full Text PDFJ Clin Neurosci
January 2025
Department of Neurosurgery, Hadassah Hebrew University Medical Center, Jerusalem, Israel.
Background: Craniopharyngiomas are epithelial tumors derived from the remnants of the Rathke pouch, while Rathke cleft cysts (RCC) are benign cystic lesions originating from the Rathke pouch itself [1]. Rathke cleft cysts comprise 10-15% of the hypophyseal tumors, while craniopharyngiomas are relatively rare, comprising only 2-5% of intracranial tumors [2]. Both located in the sellar and parasellar regions and share clinical symptoms including headache, visual disturbances, and endocrine dysfunction [3].
View Article and Find Full Text PDFInt J Pediatr Otorhinolaryngol
January 2025
Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. Electronic address:
Objectives: Surgery is the only treatment for congenital choanal atresia (CCA). It is crucial to avoid postoperative restenosis or re-occlusion of the neo-choana. This study investigated the efficacy of a navigation-assisted endoscopic endonasal U-flap technique and a bioabsorbable steroid-eluting stent for CCA repair.
View Article and Find Full Text PDFFront Oncol
December 2024
Department of Neurosurgery, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan, China.
Craniopharyngioma is a rare, benign tumor that originates from the pituitary stalk and extends along the pituitary-hypothalamic axis. It can have serious effects due to its location, affecting hormone regulation, vision, and other neurological functions. It is particularly rare and challenging to manage it during pregnancy due to the potential impacts on both maternal and fetal health, requiring careful, individualized treatment.
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