RT Journal Article SR Electronic T1 Unsuspected Klinefelter Syndrome Diagnosed during Oncologic Evaluation: A Case Series JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 132 OP 139 DO 10.3122/jabfm.18.2.132 VO 18 IS 2 A1 Eberl, Margaret M. A1 Baer, Maria R. A1 Mahoney, Martin C. A1 Sait, Sheila N. J. A1 Block, AnneMarie W. A1 Farrell, Carolyn D. YR 2005 UL http://www.jabfm.org/content/18/2/132.abstract AB Klinefelter syndrome is an underdiagnosed chromosomal disorder that has significant implications for health and for medical management. This report presents 5 adult male patients diagnosed with previously unsuspected Klinefelter syndrome as a result of cytogenetic testing for suspected hematologic malignancies. This case series highlights the importance of maintaining a comprehensive and holistic approach to medical care. The medical, genetic, and psychosocial implications of the Klinefelter diagnosis are discussed.