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Neonatal Leukemoid ReactionAn Isolated Manifestation of Mosaic Trisomy 21
Arthur G. Weinberg, MD;
Gloria Schiller, MT (ASCP);
Joan Windmiller, MD
Am J Dis Child. 1982;136(4):310-311.
Abstract
• A phenotypically normal neonate with an unexplained leukemoid reaction had a 46,XX/47,XX, +21 karyotype limited to the hemopoietic system. Although a self-limited myeloproliferative syndrome occurs in Down's syndrome, this case confirms that an identical disorder may develop in patients with mosaic trisomy 21 and no phenotypic stigmas of Down's syndrome. Chromosome analysis is a necessary adjunct to the examination of any neonate with an unexplained leukemoid reaction. The presence of trisomy 21 should lead to conservative management, unless there is life-threatening progression of the disease.
(Am J Dis Child 1982;136:310-311)
Author Affiliations
From the University of Texas Health Science Center at Dallas (Dr Weinberg and Ms Schiller) and John Peter Smith Hospital, Fort Worth, Tex (Dr Windmiller).
Footnotes
Reprints not available.
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