Biomedical subjects
Publications and source records attributed to T W Hustinx.
Chromosomal studies of the bone marrow and cultured peripheral blood cells in a 42-year-old female with the clinical and laboratory features typical for CML revealed a previously undescribed variant translocation involving chromosomes 12 and 22.
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Clinical and laboratory data are presented for two patients with a dyshaematopoietic disorder, and monosomy 7 in their bone marrow cells. The first patient, a 55-year-old woman, had been treated with chlorambucil for an ovarian carcinoma. After 4 years an oligoblastic myeloid leukaemia was diagnosed and she later died with an acute transformation of the disease. The second patient, a 21-year-old male, has had a dyserythropoietic anaemia with transient pancytopenia for over 5 years without any signs of malignancy. The possible relationship between therapy, the monosomy 7 and the other bone marrow abnormalities is briefly discussed. From an analysis of the data of these and comparable cases in the literature it appears that loss of chromosome No. 7 material is often associated with erythropoietic disorders such as erythroid hyperplasia and erythraemia. The reduction or absence of the Colton blood group antigens found in our patients and in a few other monosomy 7 cases also points to an abnormality of the red cell line.
The clinical and cytogenetic data are presented of four children with Bloom's syndrome, who belong to two unrelated Dutch families. The patients showed, in varying degrees, the clinical features most characteristic of the syndrome: stunted growth; telangiectatic facial erythema; sun-sensitivity of the skin; and decreased immuno-competence. In one child the skin lesions were only minor and the diagnosis would probably not have been made if her sib had not been recognized as having Bloom's syndrome. The cytogenetic characteristics of the syndrome were present in all patients. Each showed a high number of chromosomal aberrations and numerous sister-chromatid exchanges per cell.
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