Tag Archive | Choroidal

Chapter 152 – Choroidal Hemangiomas

Chapter 152 – Choroidal Hemangiomas   JAMES J. AUGSBURGER RAJIV ANAND GEORGE E. SANBORN           DEFINITION • Benign congenital vascular hamartoma of choroid.   KEY FEATURES • Red-orange, ill-defined, disc-shaped choroidal tumor located 3?mm or less from optic disc, foveola, or both. • Diffuse or circumscribed growth patterns.   ASSOCIATED FEATURES […]

Chapter 153 – Choroidal Osteoma

Chapter 153 – Choroidal Osteoma   JAMES J. AUGSBURGER RUDOLF GUTHOFF           DEFINITION • Acquired benign bony tumor of choroid.   KEY FEATURES • Orange to pale yellow, geographic, plate-like juxtapapillary or circumpapillary choroidal lesion. • Bone density of tumor detectable by ultrasonography or computed tomography. • Bilateral in at least […]

Chapter 138 – Choroidal Hemorrhage

Chapter 138 – Choroidal Hemorrhage   MICHAEL A. KAPUSTA PEDRO F. LOPEZ           DEFINITION • A hemorrhage in the suprachoroidal space that occurs spontaneously, intraoperatively, or traumatically, or is associated with intraocular vascular anomalies.   KEY FEATURES • One or more dome-shaped choroidal protrusions. • Forward movement of the iris, lens, […]

Chapter 124 – Choroidal Neovascularization

Chapter 124 – Choroidal Neovascularization   RICHARD F. SPAIDE           DEFINITION • Choroidal neovascularization is an inappropriate ingrowth of blood vessels and accompanying cellular infiltrate originating in the choroid, which extends through Bruch’s membrane to proliferate under the retina, the retinal pigment epithelium, or both. It is a common end-stage process […]

Chapter 110 – Choroidal Dystrophies

Chapter 110 – Choroidal Dystrophies   SANDEEP GROVER GERALD A. FISHMAN           DEFINITION • Choroideremia is a progressive, diffuse, bilateral chorioretinal dystrophy with an X-linked recessive mode of inheritance. • Gyrate atrophy of the choroid and retina is a progressive, diffuse, bilateral chorioretinal dystrophy with an autosomal recessive mode of inheritance. […]

Chapter 101 – Retinal and Choroidal Circulation

Chapter 101 – Retinal and Choroidal Circulation   SHIYOUNG ROH JOHN J. WEITER   INTRODUCTION The normal clarity of the ocular media allows the retinal circulatory system to be observed in vivo. Because many of the important diseases of the retina are related to or associated with changes in the vasculature of the retina and […]