DZI20-172: Uvea

From MGH Learn Pathology

Request type Study
Subspecialty Eye
Set MEEI Eye Pathology Collection
Topic Uvea
Presenter Stagner, Anna M.,MD


Toggle columns: Diagnosis

Case Clinical history Requester Diagnosis
Case Clinical history Requester Diagnosis

Case 1

Uveal tumor in a 60-year-old man. null Choroidal melanoma mixed cell type. Note the mushroom-shape to the mass with the crown of the mushroom created after the tumor expands through Bruch’s membrane. Many tumor cells are epithelioid in appearance while others are spindle-shaped giving the designation mixed cell type uveal melanoma. The tumor extends to the optic nerve head but does not invade it. There is substantial serous fluid under the retina (a nonrhegmatogenous retinal detachment). The tumor cells express both SOX10 and MART1. The PAS stain highlights drusen of Bruch’s membrane near the tumor as well as some corpora amylacea of the optic nerve. KEY WORDS: uveal melanoma choroidal melanoma serous retinal detachment.

Case 2

Uveal inflammation in a blind eye of a 55-year-old patient null Chronic granulomatous uveitis; the uveal inflammation was bilateral and thus the diagnosis was sympathetic ophthalmia. The inflammation includes areas with macrophages with pigment eosinophils. There is relative sparing of the innermost region of the choroid. The eye had previously suffered from diabetic retinopathy secondary iris neovascularization and glaucoma and retinal detachments requiring detachment surgery (note the gaps in the equatorial sclera at the sites of a scleral buckle) vitrectomy and lensectomy. KEY WORDS: cyclitic membrane angle closure surgery diabetes.

Case 3

Choroidal tumor in a 65 year old woman Aja51 Metastatic adenocarcinoma to choroid. There is a clearly gland-forming (adenocarcinoma) plaque-like tumor within the choroid in the posterior pole. The tumor cells are non-pigmented but are surrouded by pigmented uveal melanocytes. There is an associated exudative retinal detachment. The patient had a history of ductal carcinoma of the breast.

Case 4

Immunocompromised middle-aged patient Aja51 Monocytic acute myeloid leukemia (AML) and fungal endophthalmitis. This middle-aged patient had a 1-year history of monocytic acute myeloid leukemia with a mutant FLT3 gene (FLT3-ITD; ITD = internal tandem duplication). Headache and fevers led to the diagnosis of a fungal infection of the brain. Widespread infection despite anti-fungal therapy led to the death of the patient. At autopsy the eye had the following major abnormalities: 1) leukemic infiltration predominantly of the choroid with some choroidal vessels packed with tumor cells. 2) fungal forms in the retina sclera choroid and vitreous with the vitreous forms most apparent on this H & E slide. The fungus was Lomentospora prolificans (aka scedosporium prolificans).

Case 5

Infant with tumor in anterior segment originally diagnosed as cataract. The tumor was suspected only during cataract surgery. Weeks later the eye was enucleated. Aja51 “Teratoid” medulloepithelioma with prominent areas of cartilaginous differentiation

Case 6

Three-year-old with masses in the ciliary body of both eyes. No family history. Aja51 Bilateral nonteratoid medulloepitheliomas. Endophytic cystic mass at the pars plicata. The tumor arises from the ciliary epithelium. There are Flexner-Wintersteiner rosettes. This case was diagnosed years prior to the recognition that mutations in the DICER1 gene predispose to medulloepitheliomas.

Case 7

4-year-old with white mass in the ciliary body and cataract. Aja51 Teratoid medulloepithelioma. There is a tumor arising from the ciliary epithelium with areas of cartilage.

Case 8

55-year-old with mass in right eye. Aja51 Medulloepithelioma arising from the ciliary epithelium. This case is exceptional because most intraocular medulloepitheliomas arise in children with an average age at diagnosis of 5 years.

Case 9

25-year-old with poor vision with 1-year history of mass in ciliary body with attempted local excision. The tumor continued to grow and it extended outside the sclera at the time of enucleation. Aja51 Malignant medulloepithelioma. Tumor in the ciliary body extending into the anterior segment and extending through sclera.