2020–2021 BCSC Basic and Clinical Science Course™
4 Ophthalmic Pathology and Intraocular Tumors
Part I: Ophthalmic Pathology
Chapter 14: Orbit and Lacrimal Drainage System
Neoplasia
Secondary Tumors
Secondary malignant orbital tumors are lesions that invade the orbit by direct extension from adjacent structures, such as the paranasal sinus, intracranial cavity, eye, eyelids, or ocular surface. Metastatic tumors are malignant lesions that have spread from a distant primary site, usually by a hematogenous route. The most common primary tumor sites resulting in orbital metastasis are the breast in women and the prostate in men. In children, neuroblastoma is the most common primary tumor metastatic to the orbit.
Excerpted from BCSC 2020-2021 series: Section 4 - Ophthalmic Pathology and Intraocular Tumors. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.