Melanocytic Tumors Flashcards
What type of lesion is this? And what is the characteristic?
Iris nevus and slightly raised lesion with homogeneous brown color.
What are these lesions? And what are the changes exhibited?
Choroidal nevi. Drusen and focal RPE hyperplasia, and orange pigment associated with subretinal fluid.
What type of lesions are these?
Congenital ocular melanocytosis and melanocytoma or magnocellular nevus.
What type of lesions are these? And what are the characteristics?
Iris melanoma. Amelanotic and densely pigmented.
What type of iris melanomas are these? And what is the characteristic appearance?
Diffuse iris melanomas and granular, tapioca pudding-like appearance.
What type of lesions are these?
Iris freckle, Lisch nodules, congenital ocular or oculodermal melanocytosis, primary iris cyst, and metastasis from pulmonary carcinoma.
What is this condition? And what are the characteristics demonstrated in the imaging tests?
Iris tumors. Low internal reflectivity and with initial high signal intensity.
What are these conditions? And what do the images highlighted?
Ciliary body melanomas. Indention of the lens, sentinel vessels, tumor invasion, and ring melanoma.
What type of mass are these? And what are the characteristics?
Choroidal melanoma. Small choroidal melanoma with orange pigmentation, amelanotic melanoma with dark-orange pigmentation, medium-sized with exudative retinal detachment, large, variably pigmented, and a mushroom-shaped choroidal melanoma.
What type of tumor are these? And what do the imaging tests demonstrate?
Choroidal tumors.
Orange pigment, increased autofluorescence, low internal reflectivity, a mushroom or collar-bone shape tumors, and apparent posterior extrascleral extension of tumor.
What is this technique? And what does it reveals?
Transillumination and a shadow at the site of the choroidal melanoma.
What type of lesions are these? And what are the features noted?
Congenital hypertrophy of the retinal pigment epithelium (CHRPE). Large, homogeneous black CHRPE lesion, atrophic lacunae, and grouped pigmentation of RPE.
What is this condition? And what does the fluorescein angiography reveals?
Subretinal hemorrhage secondary to exudative macular degeneration. Hyperfluorescence, late fluorescein leakage, and hypofluorescence.
What are these conditions? And what are their characteristics?
Peripheral exudative hemorrhagic chorioretinopathy (PEHCR) with red subretinal and dark sub-RPF blood. And choroidal osteoma with a yellow-orange color and well-defined pseudopod-like margins.
What are these lesions?
Varix of the vortex vein and intraocular metastasis.
What do the images demonstrate? And what are the features noted?
A treated choroidal melanoma. Mildly elevated remains of melanoma and RPE and choroid are absent.
What type of RPE lesions are these?
Reactive hyperplasia and simple hamartoma.
