Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2004-4-23
pubmed:abstractText
Nodal tumor-forming accumulations of plasmacytoid monocytes/interferon-producing cells (PMs/IPCs) have been described in patients with myeloproliferative disorders. Here we report a series of 9 additional cases of such association. The patients were predominantly adult (median, 62 years), males (male/female ratio, 7:2), who presented with chronic myelomonocytic leukemia (4 cases), acute myeloid leukemia (1), acute monocytic leukemia (2), unclassifiable chronic myeloproliferative (1), or myeloproliferative/myelodysplastic disease (1). The prognosis was poor (median survival, 24 months) and related to progression of the underlying myeloid neoplasm. We found that in addition to lymph nodes, PMs/IPCs accumulated to bone marrow (8 cases) and skin (4 cases). Immunohistochemical markers typically expressed by PMs/IPCs (CD68, CLA/HECA452, CD123) were found in all cases and shown useful to identify cells with variations from classic morphology. In addition, PMs/IPCs expressed the interferon-alpha (IFN-alpha) inducible protein MxA, the B-cell oncogene TCL1, and granzyme B. The biologic and clinical significance of the association between PMs/IPCs and myeloid disorders remains not clarified. Using fluorescence in situ hybridization analysis in a case known to harbor monosomy 7 in the myeloid leukemia, we demonstrated that PMs/IPCs share the same chromosomal abnormality, thus indicating that they are clonal, neoplastic in nature, and closely related to the associated myeloid tumor. Recently, a novel CD56+ hematologic neoplasm has been reported and retained to stem from PMs/IPCs. The majority of PMs/IPCs in the present series failed to express CD56, thus indicating that variants of PMs/IPCs neoplasms exist, which might represent parts of a spectrum.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
585-95
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15105645-Adult, pubmed-meshheading:15105645-Aged, pubmed-meshheading:15105645-Aged, 80 and over, pubmed-meshheading:15105645-Bone Marrow, pubmed-meshheading:15105645-Clone Cells, pubmed-meshheading:15105645-DNA, Neoplasm, pubmed-meshheading:15105645-Female, pubmed-meshheading:15105645-Humans, pubmed-meshheading:15105645-Immunoenzyme Techniques, pubmed-meshheading:15105645-In Situ Hybridization, Fluorescence, pubmed-meshheading:15105645-Interferons, pubmed-meshheading:15105645-Interphase, pubmed-meshheading:15105645-Leukemia, pubmed-meshheading:15105645-Lymph Nodes, pubmed-meshheading:15105645-Male, pubmed-meshheading:15105645-Middle Aged, pubmed-meshheading:15105645-Monocytes, pubmed-meshheading:15105645-Myeloproliferative Disorders, pubmed-meshheading:15105645-Plasma Cells, pubmed-meshheading:15105645-Skin, pubmed-meshheading:15105645-Tumor Markers, Biological
pubmed:year
2004
pubmed:articleTitle
Nodal and extranodal tumor-forming accumulation of plasmacytoid monocytes/interferon-producing cells associated with myeloid disorders.
pubmed:affiliation
Department of Pathology, University of Brescia, Brescia, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't