Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa

ABSTRACT Extramedullary plasmacytomas (EMP) are uncommon solitary tumors composed of neoplastic plasma cells occurring outside the bone. These lesions are of clinical significance due to their potential progression to multiple myeloma (MM), a more systemic and serious plasma cell malignancy. Althoug...

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Main Authors: Armin Khaleghi, Nafise Shamloo
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Clinical Case Reports
Subjects:
Online Access:https://doi.org/10.1002/ccr3.9612
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author Armin Khaleghi
Nafise Shamloo
author_facet Armin Khaleghi
Nafise Shamloo
author_sort Armin Khaleghi
collection DOAJ
description ABSTRACT Extramedullary plasmacytomas (EMP) are uncommon solitary tumors composed of neoplastic plasma cells occurring outside the bone. These lesions are of clinical significance due to their potential progression to multiple myeloma (MM), a more systemic and serious plasma cell malignancy. Although EMPs primarily arise in the head and neck region, cases involving the oral cavity are particularly rare. This report presents a case of EMP in a 59‐year‐old Iranian female, who developed a mass on the left buccal mucosa, an atypical site for this type of lesion. The patient presented with a 1‐month history of a painful swelling on her left buccal mucosa. Clinical examination revealed a firm, exophytic lesion with a smooth surface. Histopathological analysis, supported by immunohistochemical staining, confirmed the diagnosis of EMP. The lesion was treated successfully through a combination of surgical excision and radiotherapy at a dose of 40 Gy. This case underscores the importance of early diagnosis and treatment of EMP, particularly in rare locations, to prevent progression to MM and improve patient outcomes. Our findings contribute to the limited body of literature on EMPs in the oral cavity, highlighting the need for awareness of such presentations among clinicians.
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spelling doaj-art-505f8ad401f14666b6c966d5856938ab2025-01-24T05:08:46ZengWileyClinical Case Reports2050-09042025-01-01131n/an/a10.1002/ccr3.9612Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal MucosaArmin Khaleghi0Nafise Shamloo1Dental Research Center, Research Institute of Dental Sciences, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran IranDepartment of Oral and Maxillofacial Pathology, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran IranABSTRACT Extramedullary plasmacytomas (EMP) are uncommon solitary tumors composed of neoplastic plasma cells occurring outside the bone. These lesions are of clinical significance due to their potential progression to multiple myeloma (MM), a more systemic and serious plasma cell malignancy. Although EMPs primarily arise in the head and neck region, cases involving the oral cavity are particularly rare. This report presents a case of EMP in a 59‐year‐old Iranian female, who developed a mass on the left buccal mucosa, an atypical site for this type of lesion. The patient presented with a 1‐month history of a painful swelling on her left buccal mucosa. Clinical examination revealed a firm, exophytic lesion with a smooth surface. Histopathological analysis, supported by immunohistochemical staining, confirmed the diagnosis of EMP. The lesion was treated successfully through a combination of surgical excision and radiotherapy at a dose of 40 Gy. This case underscores the importance of early diagnosis and treatment of EMP, particularly in rare locations, to prevent progression to MM and improve patient outcomes. Our findings contribute to the limited body of literature on EMPs in the oral cavity, highlighting the need for awareness of such presentations among clinicians.https://doi.org/10.1002/ccr3.9612buccal mucosaextramedullary plasmacytomamultiple myelomaoral cavity
spellingShingle Armin Khaleghi
Nafise Shamloo
Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
Clinical Case Reports
buccal mucosa
extramedullary plasmacytoma
multiple myeloma
oral cavity
title Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
title_full Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
title_fullStr Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
title_full_unstemmed Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
title_short Extramedullary Plasmacytoma of the Oral Cavity: A Rare Case in the Buccal Mucosa
title_sort extramedullary plasmacytoma of the oral cavity a rare case in the buccal mucosa
topic buccal mucosa
extramedullary plasmacytoma
multiple myeloma
oral cavity
url https://doi.org/10.1002/ccr3.9612
work_keys_str_mv AT arminkhaleghi extramedullaryplasmacytomaoftheoralcavityararecaseinthebuccalmucosa
AT nafiseshamloo extramedullaryplasmacytomaoftheoralcavityararecaseinthebuccalmucosa