plasmacytoma

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Related to plasmacytomas: soft tissue plasmacytoma

plasmacytoma

 [plaz″mah-si-to´mah]
1. a plasma cell dyscrasia.
2. a discrete, presumably solitary, plasma cell tumor mass.

plas·ma·cy·to·ma

(plaz'mă-sī-tō'mă),
A discrete, presumably solitary mass of neoplastic plasma cells in bone or in one of various extramedullary sites; in humans, such lesions are probably the initial phase of developing plasma cell myeloma.
[plasmacyte + G. -oma, tumor]

plasmacytoma

/plas·ma·cy·to·ma/ (plaz″mah-si-to´mah)

plasmacytoma

[plaz′məsītō′mə] pl. plasmacytomas, plasmacytomata,
a focal neoplasm containing plasma cells that may develop in the bone marrow, as in multiple myeloma, or outside the bone marrow, as in tumors of the viscera and the mucosa of the nasal, oral, and pharyngeal areas. Also called peripheral plasma cell myeloma, plasma cell tumor.

plasmacytoma

Hematology A tumor composed of malignant plasma cells. See Plasma cell.

plas·ma·cy·to·ma

(plaz'mă-sī-tō'mă)
A discrete, presumably solitary mass of neoplastic plasma cells in bone or in one of various extramedullary sites; in humans, such lesions are probably the initial phase of developing plasma cell myeloma.
[plasmacyte + G. -oma, tumor]

plas·ma·cy·to·ma

(plaz'mă-sī-tō'mă)
A discrete, presumably solitary mass of neoplastic plasma cells in bone or in one of various extramedullary sites; in humans, such lesions are probably the initial phase of developing plasma cell myeloma.
[plasmacyte + G. -oma, tumor]

plasmacytoma (plaz´məsītō´mə),

n the primary soft tissue plasma cell tumors of the oral, pharyngeal, and nasal mucous membranes. The lesion consists of typical and atypical plasma cells, and its behavior is unpredictable. See also myeloma, solitary plasma cell and dyscrasia.
plasmacytoma, soft tissue,
n a primary plasma cell tumor of the nasal, pharyngeal, and oral mucosa that has no apparent primary bone involvement. The lesions are sessile or polypoid sessile masses in the mucous membrane. The majority remain localized, but metastases have been reported.

plasmacytoma

any focal neoplasm of plasmacytes, including those of multiple myeloma (immunoblastic sarcoma). Isolated plasmacytomas may occur outside the bone marrow (extramedullary plasmacytomas), affecting such tissues as the nasal, oral, pharyngeal and gastrointestinal mucosa and other viscera; called also plasma cell tumor.
References in periodicals archive ?
Anghel and colleagues performed a literature review of testicular plasmacytoma cases and previous or concurrent multiple myeloma or EMP to assess survival.
Primary pulmonary plasmacytoma with diffuse alveolar consolidation: a case report.
A 71 years old man, with a solitary plasmacytoma of the chest wall is reported.
Myeloma may affect the liver through direct malignant cell infiltration, (4) biliary obstruction by plasmacytomas present in the pancreas or main biliary ductus, (5,6) and by amyloid deposition.
Radiotherapy plays a pivotal role in the treatment of extramedullary plasmacytomas, even though the role of elective lymphatic irradiation is still a matter of debate.
Extramedullary plasmacytomas presenting as mediastinal masses: clinicopathologic study of two cases preceding the onset of multiple myeloma.
Plasmablastic lymphoma differs from plasmacytoma In that EBV appears highly associated with plasmablastic lymphoma but is never detected in plasmacytoma or plasma cell myeloma.
Plasmacytomas are rare tumors characterized by a monoclonal proliferation of plasma cells without the presence of multiple myeloma.
Anaplastic plasmacytomas (those with a higher histologic grade) (26) and tumors with a high level of angiogenesis (9) are associated with poorer outcomes.
Compared with plasma cell myeloma, plasmacytomas are rare, are generally not associated with a monoclonal serum protein, and present with a mass lesion (Figure 7, A and B).
Extramedullary plasmacytomas most commonly occur in the nasal cavity, nasopharynx, paranasal sinuses, and larynx.