Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques

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dc.contributor.authorBanks, Catherine
dc.contributor.authorBleier, Benjamin
dc.date.accessioned2026-07-22T12:05:05Z
dc.date.available2026-07-22T12:05:05Z
dc.date.issued2025-03-08
dc.description.abstractThe position of intraconal tumors relative to the optic nerve dictates the choice of surgical approach. Tumours with their epicenter medial to the optic nerve or “below a plane of resectability” (POR), which represents a plane subtended by the contralateral nostril and the long axis of the optic nerve, are amenable to an endoscopic approach. The feasibility and safety of this approach has been demonstrated in the literature. Tumours located lateral and superior to the POR are not candidates for an exclusively endoscopic resection. The composition of the surgical team var-ies depending on the institution. However, a multidisciplinary team including an oto-laryngologist, oculoplastic surgeon and in some cases, a neurosurgeon, is invaluable. The endoscopic approach to intraconal tumours will be described in this chapter using orbital cavernous haemangioma (OCH) as an example, as is it the most common primary orbital tumour in adults, with a reported incidence of 5-15% of all orbital tumours (Figure 1).
dc.identifier.apacitationBanks, C., & Bleier, B. (2025). Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology. Retrieved from http://hdl.handle.net/11427/43643en_ZA
dc.identifier.chicagocitationBanks, Catherine, and Benjamin Bleier. (2025). "Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques." Lecture presented at ,Faculty of Health Sciences ,Division of Otorhinolaryngology. http://hdl.handle.net/11427/43643en_ZA
dc.identifier.citationBanks, C. & Bleier, B. 2025. <i>Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques</i> [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology. http://hdl.handle.net/11427/43643en_ZA
dc.identifier.ris TY - Open Education Resource AU - Banks, Catherine AU - Bleier, Benjamin AB - The position of intraconal tumors relative to the optic nerve dictates the choice of surgical approach. Tumours with their epicenter medial to the optic nerve or “below a plane of resectability” (POR), which represents a plane subtended by the contralateral nostril and the long axis of the optic nerve, are amenable to an endoscopic approach. The feasibility and safety of this approach has been demonstrated in the literature. Tumours located lateral and superior to the POR are not candidates for an exclusively endoscopic resection. The composition of the surgical team var-ies depending on the institution. However, a multidisciplinary team including an oto-laryngologist, oculoplastic surgeon and in some cases, a neurosurgeon, is invaluable. The endoscopic approach to intraconal tumours will be described in this chapter using orbital cavernous haemangioma (OCH) as an example, as is it the most common primary orbital tumour in adults, with a reported incidence of 5-15% of all orbital tumours (Figure 1). DA - 2025-03-08 DB - OpenUCT DP - University of Cape Town KW - Endoscopic KW - Transorbital KW - Intraconal Tumor KW - Orbital Cavernous Hamangioma KW - Surgical Technqiue KW - Anatomy LK - https://open.uct.ac.za PY - 2025 T1 - Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques TI - Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques UR - http://hdl.handle.net/11427/43643 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/43643
dc.identifier.vancouvercitationBanks C, Bleier B. Endoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques [OER]. ,Faculty of Health Sciences ,Division of Otorhinolaryngology, Division of Otorhinolaryngology; provided on lecture given 2026-07-22T12:05:05Z [cited yyyy month dd]. Available from http://hdl.handle.net/11427/43643en_ZA
dc.language.isoen
dc.publisher.departmentDivision of Otorhinolaryngology
dc.publisher.facultyFaculty of Health Sciences
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectEndoscopic
dc.subjectTransorbital
dc.subjectIntraconal Tumor
dc.subjectOrbital Cavernous Hamangioma
dc.subjectSurgical Technqiue
dc.subjectAnatomy
dc.titleEndoscopic Approach to Orbital Cavernous Haemangioma (OCH) and Intraconal Tumours: Surgical Anatomy and Techniques
dc.typeOpen Education Resource
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