Histologic analysis of a trephine biopsy specimen showed persistent CLL with plasmacytic
differentiation, and Grocott staining showed yeasts with central septa in small clusters.
A new conceptualization for Mikulicz's disease as an IgG4-related plasmacytic
However, there is no vascular proliferation and germinal centres are hyperplastic, in the plasmacytic
Histopathologic lesions associated with Cryptosporidium were proventricular glandular hyperplasia with intraluminal protozoa, proventriculitis, lymphocytic plasmacytic
ventriculitis, and nonsuppurative enteritis with mucosal protozoa.
When CSH occurs focally as a secondary finding in plasmacytic
or lymphoplasmacytic neoplasm, similar crystalline deposits are often present in neoplastic plasmacytic
1) Early lesions: reactive and plasmacytic
hyperplasia, infectious mononucleosis-1ike.
Some cases of extramedullary plasmacytoma may represent extranodal marginal-zone B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT) type with extreme plasmacytic
Plasmablastic lymphoma has been subdivided into two morphological subgroups [64,65]: (a) plasmablastic lymphoma of the oral mucosa type that comprises a monomorphic population of plasmablasts/immunoblasts with no or minimal plasmacytic
differentiation; and (b) plasmablastic lymphoma with plasmacytic
differentiation that is composed predominantly of plasm ablasts/ immunoblasts, but in addition exhibits more differentiation with mature plasma cells.
We report a case of plasmacytic
lymphoma with an IgM monoclonal gammopathy that was difficult to detect by CZE.
Because of nucleated red cells on the peripheral smear, the patient had bilateral bone marrow aspiration and biopsies, which revealed extensive plasmacytic
cell infiltrate comprising 70% of marrow cellularity, with the presence of homogenous eosinophilic material consistent with amyloid (Fig 1).
For the plasmacytic
cell series they recommended the terms "plasmablast," "proplasmacyte" and "plasmacyte" identify these cells, and they proposed that the term "plasma cell" be avoided; however, both terms, plasmacyte and plasma cell, are still used interchangeably.
Hence, the diagnosis of [lambda] plasmacytic
leukemia was confirmed.