Uveal Tract Flashcards
What topography is this? And what does it consist of?
Uveal tract. And iris, the ciliary body, and the choroid.
What is this histologic appearance? And what do the arrows represent?
Normal iris. And sphincter muscle and dilator muscle.
What part of the uveal tract is describe? And what do the arrows indicate?
The ciliary body, and the inner and outer layer.
What part of the uveal tract is this? And do the arrowheads indicate?
The choroid and choriocapillaris.
What is this condition? And what is the tissue present within it?
Choroidal coloboma and fibroglial tissue.
What is this condition? And what type of cells are involved?
Sympathetic ophthalmia and chronic inflammatory cells.
What types of cells are present? And what is noted beneath the RPE?
A multinucleated giant cell, epithelioid histiocytes, and lymphocytes. And the sparing of the choriocapillaris.
What do the arrows indicate?
The inflammatory cells between the RPE and Bruch membrane, and the presence of epithelioid histiocytes.
What is this condition? And what type of cells are these?
Sarcoidosis, and epithelioid histiocytes and multinucleated giant cells.
What are these lesions? And what is the characteristic of the cells?
Juvenile xanthogranuloma. And Touton giant cells, inner eosinophilic cytoplasm, foamy histiocytes, and admixed lymphocytes.
What is this condition? And what do the arrows demonstrate?
Rubeosis iridis, or neovascularization of the iris. And small blood vessels, dragging of the iris pigment epithelium and sphincter muscle.
What are the changes described in this image?
Age-related changes in the ciliary body including sclerotic vessels and hyalinization.
What type of nevus is this? And what is the characteristic of the cells?
Iris nevus and spindle-shaped nevus cells.
What is this condition? And what is the characteristic of the cells?
Iris melanoma and epithelioid melanoma cells containing prominent nucleoli.
What type of nevus is this?
Spindle-cell choroidal nevus.
What type of cells are these? And what is the characteristic of the nuclei?
Spindle-A cells and a slender, elongated nuceli with small nucleoli.
What type of cells are these? And what do they demonstrate?
Spindle-B cells and demonstrate a higher nuclear-to-cytoplasmic ratio, more coarsely granular chromatin, and plumper, large nuclei.
What type of cells are these? And what are the characteristics demonstrated?
Epithelioid melanoma cells and marked pleomorphism, formation of multinucleated tumor cells and balloon cells.
What type of intra-ocular tumor is this? And what is the characteristic?
Choroidal melanoma with rupture through Bruch membrane and a mushroom or collar-button shape.
What is the growth pattern of this melanoma? And what does it contain?
Diffuse placoid fashion, replacing normal choroid, without achieving significant height. And eosinophilic proteinaceous material.
What type of melanoma is this? And what is the characteristic?
A ring melanoma and tumor extends for the entire circumferaence of the ciliary body.
What do the images describe?
The scleral canal and vortex vein invasion by melanoma.
What do the arrows indicate?
Invasion of the neurosensory retina by melanoma.
What type of melanoma is described in this image?
Ciliary body melanoma invading the angle.
What do the images describe? And what do they emphasize?
Extravascular matrix patterns in uveal melanoma and a closed-loop and network.
What type of metastasis is this? And what are the features noted?
Choroidal metastasis And adenocarcinoma with mucin production and overlying retinal detachment and a well-differentiated adenocarcinoma with distinct glandular appearance.
What type of hemangioma is this? And what do the images indicate?
Choroidal hemangioma. And an exudative retinal detachment overlying the lesions and the Bruch membrane.
What type of lymphoma is this? And what is the characteristic described?
Choroidal lymphoma with diffuse expansion and atypical lymphocytes.
What is this disorder? And what is the characteristic?
Choroidal neurofibromatosis and diffusely infiltrated by spindle-shaped cells, occasional ganglion cells.
