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By McGill University Health Centre
The MUHC-McGill University
Co-author(s): Sabrina Bergeron, P. Zoroquiain, E. Esposito, S. Corredor Casas, P. Logan, A. N. Odashiro, Miguel N. Burnier, Paulina García de Alba Graue, McGill University Health Center-McGill University Ocular Pathology & Translational Research Laboratory - Uploaded on May 18, 2020.
- Last modified by Caroline Bozell on May 19, 2020.
- Rating
- Appears in
- Carcinoid
- Condition/keywords
- carcinoidenucleationfocal microhemorrhages
- Description
- 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).
