Flow cytometric (FCM) analysis of DNA content was performed on 82 lymph node and peripheral blood specimens from 46 patients with mycosis fungoides and the Sézary syndrome. Overall, 32 of the 46 patients (70%) had aneuploidy detected by FCM. Aneuploidy was present in 63% of the patients at the time of diagnosis before systemic therapy. In these patients, aneuploidy was frequently detected in blood and lymph node specimens scored as negative by cytology and histology, suggesting that unsuspected extracutaneous dissemination is present in many patients at the time of diagnosis.
Paul A. Bunn Jr., Jacqueline Whang-Peng, Desmond N. Carney, Mark L. Schlam, Turid Knutsen, Adi F. Gazdar