Intraocular Tumors

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Author:
zimmerk
ID:
218541
Filename:
Intraocular Tumors
Updated:
2013-05-08 10:26:44
Tags:
eye ultrasound
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Description:
Ch. 5 - Intraocular Tumors
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  1. What are Pseudomelanomas?
    Lesions that can simulate an ocular melanoma clinically and/or echographically.
  2. 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)
  3. 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
  4. What is used to differentiate an ocular melanoma?
    Location, Shape, Reflectivity, Structure, Vascularity
  5. 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
  6. 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
  7. What are they typical characteristics of a Choroidal hemangioma?
    located in the posterior choroid; dome shape; high reflectivity, regular structure, ‐vascularity
  8. 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
  9. What are the characteristics of a disciform lesion?
    located in the macula, dome or irregular shaped; high reflectivity, variable structure, ‐vascularity
  10. What are the characteristics of a choroidal hemorrhage?
    located in the choroid; dome shaped; variable reflectivity; variable structure, ‐ vascularity
  11. 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
  12. What is Leukokoria?
    an abnormal white reflection from the retina of the eye
  13. List conditions associated with Leukokoria
    Retinoblastoma, ROP, PHPV, Coats' disease, Toxocariasis, Endophthalmitis, Cysticercosis,Medulloepithelioma
  14. List the main characteristics of Retinoblastoma
    calcified mass, normal axial length, unilateral/bilateral
  15. List the main characteristics of Retinopathy of Prematurity(ROP) (stage V)
    Total retinal detachments w/ retinal loops, short axial length, bilateral
  16. List the main characteristics of Persistent Hyperplasticprimary vitreous (PHPV)
    Vitreous band from the lens to the optic nerve, short axial length, unilateral (PFV)
  17. List the main characteristics of Coats' disease
    Exudative retinal detachment, normal axial length, unilateral
  18. List the main characteristics of Toxocariasis
    Peripheral glaucoma, retinal folds, posterior traction RD, normal axial length, unilateral
  19. List the main characteristics of Endophthalmitis
    Vitreous opacities, normal axial length, unilateral
  20. List the main characteristics of Cysticercosis
    Cyst with scolex, normal axial length, unilaterial
  21. List the main characteristics of Medulloepithelioma(diktyoma)
    Ciliary body mass with cystic cavities, normal axial length, unilaterial

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