Abstract
Plasmacytoma, a rare form of plasma cell dyscrasia, refers to a neoplastic proliferation of plasma cells. Although the upper aerodigestive tract is the most common site for extramedullary plasmacytoma, mediastinal and pleural involvement is extremely rare. We report the case of a patient who presented with a large mediastinal mass and pleural effusion. Diagnosis was challenging and subsequently made as mediastinal extramedullary plasmacytoma with simultaneous myelomatous pleural effusion. Further investigations revealed multiple myeloma.
MeSH terms
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Aged
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Biopsy, Fine-Needle
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Blood Protein Electrophoresis
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Bronchoscopy
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Chest Pain / diagnosis
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Chest Pain / etiology
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Diagnosis, Differential
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Drainage
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Endosonography*
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Humans
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Immunoglobulin G / metabolism
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Male
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Mediastinal Neoplasms / complications
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Mediastinal Neoplasms / diagnosis*
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Mediastinal Neoplasms / pathology
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Mediastinoscopy
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Multiple Myeloma / complications
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Multiple Myeloma / diagnosis
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Multiple Myeloma / pathology
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Plasmacytoma / complications
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Plasmacytoma / diagnosis*
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Plasmacytoma / pathology
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Pleural Effusion, Malignant / diagnosis*
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Pleural Effusion, Malignant / etiology
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Pleural Effusion, Malignant / pathology
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Tomography, X-Ray Computed