نتایج جستجو برای: cytogenetic abnormalities
تعداد نتایج: 112411 فیلتر نتایج به سال:
Uterine leiomyomata (myomas) are associated with a variety of characteristic cytogenetic abnormalities. The significance of these chromosomal aberrations in the pathobiology of myomas remains to be determined. The present study investigated the relationship between myoma cytogenetic abnormalities and size. A total of 114 myoma specimens were obtained from 92 patients undergoing myomectomy or hy...
The International Myeloma Working Group consensus updates the definition for high-risk (HR) multiple myeloma based on cytogenetics Several cytogenetic abnormalities such as t(4;14), del(17/17p), t(14;16), t(14;20), nonhyperdiploidy, and gain(1q) were identified that confer poor prognosis. The prognosis of patients showing these abnormalities may vary with the choice of therapy. Treatment strate...
Acute lymphoblastic leukemia (ALL) in infants generally shows distinctive biologic features and has a poor prognosis. Cytogenetic studies indicate that many infant leukemias have chromosome 1 1 q23 translocations. Because of these findings and the distinct clinical features of infant leukemia, we investigated 30 cases of infant ALL for molecular defects of l l q23. Fourteen cases had cytogeneti...
Writ/i the technical assistance of Miss Lila Fliegelnian O CCASIONAL REPORTS have presemited cytogenetic data from cases of megaloblastic anemia.ii,uul Although no consistemit cytogenetic abnormalities have yet beeii found, a variety of changes have been described in some cases of pernicious anemia.m’ ’m” The significance of these findings is not clear. This report describes cytogenetic observa...
The malignant cells in many patients who have leukemia, lymphoma, or another hematologic neoplasm have acquired clonal chromosomal abnormalities. Specific cytogenetic abnormalities are closely, and sometimes uniquely, associated with morphologically and clinically distinct subsets of leukemia or lymphoma (1,2). The detection of a cytogenetic abnormality clearly distinguishes between benign reac...
CONTEXT AND OBJECTIVE Following hematopoietic stem cell transplantation (HSCT), karyotyping is a valuable tool for monitoring engraftment and disease status. Few studies have examined the prognostic significance of karyotypes in patients who underwent HSCT for chronic myeloid leukemia (CML). The objective of this study was to evaluate the significance of pretransplantation cytogenetic status in...
autism is a complex neuropsychiatric disorder that manifests in early childhood. although the etiology is unknown yet but, new hypothesis focused on identifying the key genes related to autism may elucidate its etiology. the main objective of the present study was to verify the value of karyotyping in autistic children and identifying association between chromosome abnormalities and autism.we e...
A serious complication of aplastic anemia (AA) is its evolution to clonal hematologic diseases such as myelodysplasia (MDS) and leukemia, which is usually associated with the appearance of a cytogenetic abnormality in bone marrow cells. We present here an analysis of a cohort of 30 patients with otherwise typical AA in whom clonal karyotypic evolution was observed during frequent periodic marro...
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