Search results (137 results)

May 18 2020 by McGill University Health Centre

The enucleation specimen in (A) shows an amelanotic, mushroom-shaped tumor arising from the choroid. Microhemorrhages are present within the tumor and also surround the tumor base (arrow). True retinal detachment is present (arrowhead). The subretinal fluid is mixed: clear (1), hemorrhagic (2), and fibrinoid (3).

Condition/keywords: choroidal melanomaenucleationmushroom-shaped

May 18 2020 by McGill University Health Centre

The enucleation image shows a large amelanotic tumor with large areas of hemorrhage and necrosis. Note the several dilated blood vessels and an adjacent retinal detachment with lipofuscin pigment on its surface (arrow).

Condition/keywords: amelanotic melanomachoroidal melanomaenucleationmushroom-shaped

May 18 2020 by McGill University Health Centre

This enucleation specimen demonstrates an amelanotic, mushroom-shaped, slightly hemorrhagic tumor near the optic nerve (arrow). True retinal detachment is present, and the retina is folded (arrowhead). The subretinal fluid is hazy (*).

Condition/keywords: amelanotic melanomachoroidal melanomaenucleationmushroom-shaped

May 18 2020 by McGill University Health Centre

The enucleation specimen in (B) shows an amelanotic, mushroom-shaped, slightly hemorrhagic tumor near the optic nerve (arrow). The shape is due to infiltration of the retina by a rupture of the Bruch membrane. A retinal detachment artifact is present.

Condition/keywords: choroidal melanomaenucleationmushroom-shaped

Oct 19 2012 by Larry Halperin, MD

Auto-enucleation with tire iron

Condition/keywords: enucleationself-inflictedtrauma

May 18 2020 by McGill University Health Centre

These are usually secondary tumor foci, arising most frequently from a primary tumor in the gastrointestinal tract or lung. Melanoma should be considered as part of the differential diagnosis, because neither carcinoid nor melanoma tumors have a necrotic component. This enucleation specimen shows a welldifferentiated neuroendocrine tumor in the choroid. The overlying pigment is caused by proliferation of the retinal pigment epithelium (arrowhead). Focal microhemorrhages are visible on the surface of the retina (arrows).

Condition/keywords: carcinoidenucleationfocal microhemorrhages

May 18 2020 by McGill University Health Centre

Image showing the central retinal artery (arrow) in the optic nerve.

Condition/keywords: central arteryenucleationoptic nerve

May 18 2020 by McGill University Health Centre

Choroidal melanoma is often asymptomatic and diagnosis is incidental. The tumors may grow beneath the retina, or may break through the Bruch membrane and disrupt the retina. Tumors breaking through the Bruch membrane and disrupting the retina have a characteristic “mushroom” shape. This enucleation specimen shows a pigmented dome-shaped choroidal melanoma (arrow). The cataractous lens is dislocated (*) and the retina is folded (•).

Condition/keywords: choroidal melanomaenucleation

Nov 3 2022 by pedro fernandes souza neto

Transillumination of Enucleation specimen of Choroidal Melanoma: anterior chamber is closed. Total secondary retinal detachment with subretinal serous fluid and some subretinal hemorrhages are present.

Photographer: Eduardo Marback, Federal University of Bahia, Brazil

Condition/keywords: choroidal melanomaenucleationmelanoma

Nov 3 2022 by pedro fernandes souza neto

Enucleation specimen of Choroidal Melanoma: anterior chamber is closed. Total secondary retinal detachment with subretinal serous fluid and some subretinal hemorrhages are present.

Photographer: Eduardo Marback, Federal University of Bahia, Brazil

Condition/keywords: choroidal melanomaenucleation

May 18 2020 by McGill University Health Centre

Uveal melanoma is the most common primary eye malignancy in adulthood, occurring mainly after age 60. The uveal tract — composed of the iris, ciliary body, and choroid — can be affected by uveal melanoma. Despite advances in treatment of the primary tumor, metastatic disease occurs in almost half of patients, generally affecting the liver and lungs via hematogenous dissemination of the primary tumor. Tumors have different levels of pigmentation, and some are amelanocytic (nonpigmented). The differential diagnosis for amelanotic choroidal melanoma is metastatic disease. Large tumors displace the lens. Of the 3 locations in the uveal tract, tumors of the ciliary body have the worst prognosis. The enucleation specimen in (A) shows a firm, dome-shaped, deeply pigmented tumor arising from the ciliary body (arrow). The lens has been removed, and a diffuse retinal detachment artifact is present.

Condition/keywords: enucleationmelanoma

May 18 2020 by McGill University Health Centre

Uveal melanoma is the most common primary eye malignancy in adulthood, occurring mainly after age 60. The uveal tract — composed of the iris, ciliary body, and choroid — can be affected by uveal melanoma. Despite advances in treatment of the primary tumor, metastatic disease occurs in almost half of patients, generally affecting the liver and lungs via hematogenous dissemination of the primary tumor. Tumors have different levels of pigmentation, and some are amelanocytic (nonpigmented). The differential diagnosis for amelanotic choroidal melanoma is metastatic disease. Large tumors displace the lens. Of the 3 locations in the uveal tract, tumors of the ciliary body have the worst prognosis The enucleation specimen in (B) shows a large, dome-shaped, mixed melanotic and amelanotic choroidal melanoma. The anterior chamber is closed, and the angle is infiltrated (arrow). Total secondary retinal detachment with subretinal serous fluid and some subretinal hemorrhages are present (arrowhead). The lens is cataractous.

Condition/keywords: enucleationmelanoma

May 18 2020 by McGill University Health Centre

Uveal melanoma is the most common primary eye malignancy in adulthood, occurring mainly after age 60. The uveal tract — composed of the iris, ciliary body, and choroid — can be affected by uveal melanoma. Despite advances in treatment of the primary tumor, metastatic disease occurs in almost half of patients, generally affecting the liver and lungs via hematogenous dissemination of the primary tumor. Tumors have different levels of pigmentation, and some are amelanocytic (nonpigmented). The differential diagnosis for amelanotic choroidal melanoma is metastatic disease. Large tumors displace the lens. Of the 3 locations in the uveal tract, tumors of the ciliary body have the worst prognosis. This enucleation specimen shows a pigmented, nodular-shaped ciliary body melanoma (arrow) with extensive necrosis (*). A retinal detachment is present with subretinal fluid (arrowhead), and the retina is folded (•).

Condition/keywords: enucleationmelanoma

May 18 2020 by McGill University Health Centre

This sample was retrieved from a patient with a blind, painful eye. Blind, painful eye may be the end stage of several conditions including glaucoma, retinal detachment, and endophthalmitis, among others. Evisceration specimens are generally submitted in fragments. Different intraocular structures are identifiable: retina, cornea and capsular bag, choroidal tissue, and hematic material.

Condition/keywords: enucleationeviscerationintraocular structures

May 18 2020 by McGill University Health Centre

The eye is an organ with 3 layers (from the outermost to the innermost): fibrous layer (sclera and cornea), uveal tract (iris, ciliary body, and choroid), and retina. The lens divides the eye into the aqueous chamber (filled with aqueous humor) and vitreous chamber (filled with vitreous humor). The iris divides the aqueous chamber into anterior and posterior chambers. This image illustrates the aqueous chamber (1), posterior chamber (2), and vitreous chamber (3).

Condition/keywords: aqueous chambercross-sectionenucleationposterior chamber intraocular lens (PCIOL)vitreous chamber

May 18 2020 by McGill University Health Centre

Ocular cysticercosis is a disease that is caused by the encystment of cysticercus larvae from certain tapeworms in the eye. In this enucleation specimen, a choroidal cyst (arrow) containing a larva (*) is clearly visible. Note the retinal detachment overlying the cyst.

Condition/keywords: cystcysticercosisenucleation

May 18 2020 by McGill University Health Centre

Image (A) shows an endophytic grayish tumor located on the retina of this enucleation specimen (arrow). Higher magnification of the same specimen (B) shows small hemorrhagic areas (arrow). The choroidal layer is not compromised.

Condition/keywords: enucleationretinoblastoma

May 18 2020 by McGill University Health Centre

The anterior view of enucleated eye shows a cataractous lens seen through the pupil.

Condition/keywords: cataractenucleation

May 18 2020 by McGill University Health Centre

This enucleation specimen shows an aphakic eye with a large, solid choroidal tumor. The tumor is heavily pigmented; it shows different shades in some areas. The tumor reaches the ciliary body.

Condition/keywords: aphakic eyechoroidal melanomachoroidal tumorenucleation

May 18 2020 by McGill University Health Centre

The cornea is transparent and thin. The lens is cataractous. The ora Serrata (arrow) demarcates a transition zone in the uveal tract between the pars plana of the ciliary body and the retina.

Condition/keywords: cataractenucleation

May 18 2020 by McGill University Health Centre

In an ophthalmoscopic-like view of an enucleation specimen shows macular edema. Note the folds surrounding the foveal area (arrow).

Condition/keywords: enucleationmacular edema

Apr 13 2020 by Sophia El Hamichi, MD

A 84-year-old female with advanced malignant melanoma of the her left eye requiring enucleation.

Photographer: Belinda Rodriguez, Murray Ocular Oncology and Retina, Miami

Condition/keywords: enucleationgross pathologymalignant melanoma

May 18 2020 by McGill University Health Centre

This image illustrates marked retinal atrophy with several bone-spicule-shaped pigment deposits in the peripheral retina. The macular area is preserved but has a rim of depigmentation. Note the thin blood vessels and the pallor of the optic nerve.

Condition/keywords: atrophyenucleation

May 18 2020 by McGill University Health Centre

The enucleation specimen shows an atrophic eye (< 16 mm in its largest dimension) with complete disorganization of the posterior structures.

Condition/keywords: enucleationphthisis bulbi

May 18 2020 by McGill University Health Centre

In (A), a pupil–optic view of an enucleation specimen shows pseudo–retinal detachment. Note the absence of fluid beneath the retina (arrow). In (B), high magnification of a pseudo–choroidal detachment shows the bare sclera separate from the choroid and retinal pigmented epithelium.

Condition/keywords: choroidal detachmentenucleation