Advanced stage and high-risk FLIPI and IPI scores at diagnosis correlate with an increased risk of HT. This event strongly influences the outcome of patients with FL by shortening their survival. There may be a subgroup of patients in whom HT does not occur.
Nine cases of hereditary stomatocytosis (HSt) are presented which show documented thrombotic complications after splenectomy. In three cases, patients became severely ill with pulmonary hypertension and a fourth developed portal hypertension. One unsplenectomized affected adult relative had suspected but unconfirmed thrombotic pathology; the six other affected unsplenectomized adults did not. Since splenectomy is of only limited therapeutic benefit in stomatocytosis, it should not be performed without careful consideration. A tendency to iron overload, even without hypertransfusion and irrespective of splenectomy, is evident in many of these patients.
Gene expression profiles were determined from presentation peripheral blood and bone marrow samples of 28 patients with acute myeloid leukemia (AML). Hierarchical clustering sorted the profiles into separate groups, each representing one of the major cytogenetic classes in AML [i.e., t(8;21), t(15;17), inv(16), 11q23, and normal karyotype]. Statistical group comparison identified genes whose expression was strongly correlated with these chromosomal classes. Moreover, the normal karyotype AMLs were characterized by distinctive up-regulation of certain members of the class I homeobox A and B gene families, implying a common underlying genetic lesion. These data reveal novel diagnostic and therapeutic targets and demonstrate the potential of microarray-based dissection of AML.
tMDS and sAML are serious complications of HDT for NHL and are associated with very poor prognosis. Alternative strategies for reducing their incidence and for treatment are needed.
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