-
What are Pseudomelanomas?
Lesions that can simulate an ocular melanoma clinically and/or echographically.
-
List the types of TUMORS that are Pseudomelanomas
Metastatic carcinoma, Choroidal hemangioma, Calcific tumors (osteoma), Nevus,Melanocytoma (magnocellular nevus), Intraocular B‐cell lymphoma (reticulum cell sarcoma),Uveal lymphoid hyperplasia, Leukemia, Leiomyoma, Uveal Schwannoma (neurilemoma),Neurofibroma, Hamartomas of the retina (capillary & combined), Scleral tumors, Adenoma,Medulloepithelioma (diktyoma)
-
List the types of NONTUMOR that are Pseudomelanomas
Disciform lesion, Hemorrhagic RPE detachment (HRPED), Choroidal hemorrhage (focal),Hemorrhage into retinal cyst/schisis, Posterior nodular scleritis, Inflammatory lesions of thechoroid (VKH), Bilateral diffuse uveal melanocytic proliferation (BDUMP), Ampulla of vortexvein, Posterior coloboma, Dislocated lens & lens nuclei, Intumescent lens, Cyst, Epithelialdowngrowth
-
What is used to differentiate an ocular melanoma?
Location, Shape, Reflectivity, Structure, Vascularity
-
What are the typical characteristics of a Melanoma?
located in the Choroid/ciliary body; dome/collar button shaped; low‐medium reflectivity;regular internal structure, + for vascularity
-
What are the typical characteristics of a Metastatic carcinoma?
located in the posterior choroid; diffused/irregular shape; medium to high reflectivity;irregular structure; ‐ for vascularity
-
What are they typical characteristics of a Choroidal hemangioma?
located in the posterior choroid; dome shape; high reflectivity, regular structure, ‐vascularity
-
Wh t th h t iti f h idl What are the characteristics of a choroidal nevus?
located in the choroid; dome shaped; high reflectivity; regular structure; ‐ vascularity
-
What are the characteristics of a disciform lesion?
located in the macula, dome or irregular shaped; high reflectivity, variable structure, ‐vascularity
-
What are the characteristics of a choroidal hemorrhage?
located in the choroid; dome shaped; variable reflectivity; variable structure, ‐ vascularity
-
List conditions associated with calcification
Choroidal osteoma, sclerochoroidal calcification, Retinoblastoma, Retinal angioma, Retinalastrocytic hamartoma, Choroidal melanoma, Choroidal hemangioma, Optic nerve headdrusen, Disciform lesions, Granuloma, Cysticercosis, Mature cataracts, Trauma, Longstandingretinal detachments, Phthisis bulbi, Cogan's plaques
-
What is Leukokoria?
an abnormal white reflection from the retina of the eye
-
List conditions associated with Leukokoria
Retinoblastoma, ROP, PHPV, Coats' disease, Toxocariasis, Endophthalmitis, Cysticercosis,Medulloepithelioma
-
List the main characteristics of Retinoblastoma
calcified mass, normal axial length, unilateral/bilateral
-
List the main characteristics of Retinopathy of Prematurity(ROP) (stage V)
Total retinal detachments w/ retinal loops, short axial length, bilateral
-
List the main characteristics of Persistent Hyperplasticprimary vitreous (PHPV)
Vitreous band from the lens to the optic nerve, short axial length, unilateral (PFV)
-
List the main characteristics of Coats' disease
Exudative retinal detachment, normal axial length, unilateral
-
List the main characteristics of Toxocariasis
Peripheral glaucoma, retinal folds, posterior traction RD, normal axial length, unilateral
-
List the main characteristics of Endophthalmitis
Vitreous opacities, normal axial length, unilateral
-
List the main characteristics of Cysticercosis
Cyst with scolex, normal axial length, unilaterial
-
List the main characteristics of Medulloepithelioma(diktyoma)
Ciliary body mass with cystic cavities, normal axial length, unilaterial
|
|
