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Numerical chromosome changes in a nasal polyp

The etiology of nasal polyposis is not fully understood. We found numerical chromosome changes in one out of five cytogenetically investigated nasal polyps. The histological picture of this case was characterized by the presence of histiocyte‐like cells, which were absent in the remaining cytogenetically normal polyps. Genes Chromosom Cancer 10:203–206 (1994). © 1994 Wiley‐Liss, Inc.