Choroidal Lymphoma

Introduction

Contain yellow poorly defined lesions that can be multifocal and bilateral in nature, but is typically unilateral.
- Due to low grade nature, it is not a very aggressive disease in the choroid
- Affects more males, also typically affecting ages 50-70

Dead Giveaways

OCT:

Reveals 'wavelike' or 'seasick' appearance
Wave-like appearance, which is different from normal choroidal tumours that have a smooth or plateu surface

diagnostic features

Primary Uveal Features:

Decreased vision
Metamorphopsia
Clear vitreous, retina unaffected

Secondary Intraocular/choroidal Lymphomas:

Can be unilateral or bilateral
Decreased vision
Variable appearance, manifesting with:
- choroidal thickening
- vitreous cells
- pseudohypopyon