Abstract
Plasmacytoma is a descriptive term applied to tumours consisting of plasma cells. International Myeloma Working Group has described three types, solitary, extramedullary and multiple plasmacytoma. Solitary is involvement of a single bone, extramedullary is a localized collection of plasma cells in the soft tissue at an extraskeletal site such as orbit, whereas multiple involves many bones. They all lack systemic involvement. When there is a systemic plasma cell disorder, it is called multiple myeloma. The incidence of plasmacytoma in the orbits is very rare, and rarer still is an orbital mass as a presenting feature in multiple myeloma.
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Further Reading
Adkins JW, Shields JA, Shields CL, Eagle RC Jr, Flanagan JC, Campanella PC. Plasmacytoma of the eye and orbit. Int Ophthalmol. 1997;20:339–43.
Lazaridou MN, Micallef-Eynaud P, Hanna IT. Soft tissue plasmacytoma of the orbit as part of the spectrum of multiple myeloma. Orbit. 2007;26:315–8.
Sharma A, Kaushal M, Chaturvedi NK, Yadav R. Cytodiagnosis of multiple myeloma presenting as orbital involvement: a case report. Cyto J. 2006;10:3–19.
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Amrith, S., Young, S.M., Ting, E., Wu, B., Nga, M.E., Sundar, G. (2019). Plasmacytoma/Multiple Myeloma. In: Amrith, S., Sundar, G., Young, S. (eds) Ocular Adnexal Lesions. Springer, Singapore. https://doi.org/10.1007/978-981-13-3798-7_40
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DOI: https://doi.org/10.1007/978-981-13-3798-7_40
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