Orbital Plasmacytoma as the Initial Presentation of Multiple Myeloma: A Case Report.

Multiple myeloma is a plasma cell dyscrasia that can lead to bone, renal, and hematologic complications. While multiple myeloma often manifests as a systemic disease, extramedullary manifestations can also occur in more advanced or aggressive forms of the disease. One of these manifestations is orbital plasmacytomas, which are rare and can often mimic other orbital pathologies, complicating diagnosis and treatment. This case report discusses a unique presentation of orbital plasmacytoma, emphasizing the importance of early diagnosis and tailored treatment.