Volume 70, Issue 4 pp. 361-364
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Del(10)(q22.3q24.1) associated with juvenile polyposis

Russell F. Jacoby

Corresponding Author

Russell F. Jacoby

Department of Medicine, Section of Gastroenterology, University of Wisconsin, Madison

University of Wisconsin Comprehensive Cancer Center, University of Wisconsin, Madison

Wm. S. Middleton Memorial Veteran's Hospital, Madison, Wisconsin

H6/516 Clinical Science Center, 600 Highland Avenue, Madison, WI 53792Search for more papers by this author
Steven Schlack

Steven Schlack

Department of Medicine, Section of Gastroenterology, University of Wisconsin, Madison

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Gurbax Sekhon

Gurbax Sekhon

Departments of Genetics and Pediatrics, University of Wisconsin, Madison

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Renata Laxova

Renata Laxova

Departments of Genetics and Pediatrics, University of Wisconsin, Madison

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Abstract

Juvenile polyps are the most frequent gastrointestinal polyps with a malignant potential for which the genetic basis is unknown. Juvenile polyps, with a normal epithelium but hypertrophic lamina propria, are histologically quite distinct from adenomatous polyps which have dysplastic changes in epithelial nuclei. Furthermore, the adenomatous polyposis coli (APC) gene on Chr 5, mutated somatically in adenomatous polyps and mutated in the germline of patients with familial adenomatous polyposis, is not linked to hereditary juvenile polyposis. We provide the first report indicating that a tumor suppressor gene associated with juvenile polyposis may be located at 10q22.3q24.1. Cytogenetic studies of a patient with juvenile polyposis and multiple congenital abnormalities of the head, extremities, and abdomen revealed a de novo interstitial deletion of Chr 10 as the only defect, del(10)(10q22.3q24.1). Am. J. Med. Genet. 70:361–364, 1997. © 1997 Wiley-Liss, Inc.

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