Table of Contents
Definition / general | Radiology images | Case reports | Clinical images | Microscopic (histologic) images | Positive stains | Differential diagnosisCite this page: Pernick N. Lymphoma-orbit. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/eyeorbitlymphoma.html. Accessed September 21st, 2023.
Definition / general
- Tumors composed of small lymphocytic proliferations confined to orbit are usually indolent and associated with long survival, even with minimal treatment
- MALT lymphoma:
- Uniform and monotonous proliferation of small lymphocytes infiltrating into orbital fat, blood vessels and nerves
- May have plasmacytoid features with Dutcher bodies (intranuclear inclusions) and serum paraproteinemia
- Light chain restriction
Case reports
- 5 year old girl with an angiocentric orbital lesion with an immature natural killer cell immunophenotype (Hum Pathol 2001;32:339)
- Nasal-type NK/T cell lymphoma of the orbit with distant metastases (Hum Pathol 2003;34:290)
Microscopic (histologic) images
AFIP images
Low grade tumor
Positive stains
- Monotypic immunoglobulins
Differential diagnosis
- Lymphoid hyperplasia:
- Polymorphic lymphocytes, vascular proliferation, prominent follicles with germinal centers