| choroid diseases | Disorders of the choroid including hereditary choroidal diseases, neoplasms, and other abnormalities of the vascular layer of the uvea. (12 Dec 1998) |
|---|---|
| choroid fissure | In the embryo, the temporary gap in the ventral margin of the developing optic cup. Synonym: choroid fissure, choroid fissure, choroidal fissure. (05 Mar 2000) |
| choroid glomus | A marked enlargement of the choroid plexus of the lateral ventricle at the junction of the central part with the inferior horn. Synonym: glomus choroideum, choroid skein. (05 Mar 2000) |
| choroid haemorrhage | Haemorrhage from the vessels of the choroid. (12 Dec 1998) |
| choroid neoplasms | Tumours of the choroid; most common intraocular tumours are malignant melanomas of the choroid. These usually occur after puberty and increase in incidence with advancing age. Most malignant melanomas of the uveal tract develop from benign melanomas (nevi). (12 Dec 1998) |
| choroid skein | A marked enlargement of the choroid plexus of the lateral ventricle at the junction of the central part with the inferior horn. Synonym: glomus choroideum, choroid skein. (05 Mar 2000) |
| choroid veins of eye | Several veins (usually four) from the vascular tunic formed of veins accompanying the posterior ciliary arteries and the ciliary body; then drain into the superior or inferior ophthalmic vein. Synonym: venae vorticosae, venae choroideae oculi, choroid veins of eye, Stensen's veins, vasa vorticosa, vorticose veins. (05 Mar 2000) |
| gyrate atrophy of choroid and retina | A slowly progressive atrophy of the choriocapillaris, pigmentary epithelium, and sensory retina, with irregular confluent atrophic areas and an associated ornithinuria; autosomal recessive inheritance; due to a deficiency of ornithine d-aminotransferase. (05 Mar 2000) |
| coloboma of choroid | A congenital defect of the choroid and retinal pigment epithelium exposing the sclera; the defect is usually situated below the optic disk in the region of foetal fissure. (05 Mar 2000) |
| superior choroid vein | <anatomy, vein> A tortuous vein that follows the choroid plexus of the lateral ventricle and unites with the superior thalamostriate vein and the anterior vein of the transparent septum to form the internal cerebral vein. Synonym: vena choroidea superior. (05 Mar 2000) |
| inferior choroid vein | <anatomy, vein> A small vein draining the lower part of the choroid plexus of the lateral ventricle into the basal vein. Synonym: vena choroidea inferior. (05 Mar 2000) |
| epithelial choroid layer | The layer of modified ependymal cells that forms the inner layer of the tela choroidea, facing the ventricle. Synonym: lamina epithelialis, epithelial choroid layer, lamina choroidea epithelialis, lamina choroidea. (05 Mar 2000) |
| burns, third degree | In third degree burns the damage has progressed to the point of skin death. The skin is white and without sensation. (12 Dec 1998) |
| molar, third | The aftermost permanent tooth on each side in the maxilla and mandible. (12 Dec 1998) |
| pregnancy trimester, third | Period of pregnancy from the beginning of the 29th through the 42nd completed week (197 to 294 days) of gestation. (12 Dec 1998) |