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Pierre E. Ferrier, MD; Simone A. Ferrier, MD; Graziano Pescia, MD

Am J Dis Child. 1974;127(1):104-105.

Abstract
The XXXY variety of Klinefelter syndrome should be suspected when the following features are observed in a mentally retarded boy: decreased upper-lower body segment ratio, microcephaly, clinodactyly with brachymesophalangia of the fifth fingers, and dermatoglyphic arches on nine or ten fingers associated with attriradius in t¹ position. These features are not puberty-dependent like the endocrine characteristics of Klinefelter syndrome and, therefore, permit an early diagnosis.

Author Affiliations
Geneva

From the Department of Pediatrics and Genetics, University of Geneva (Switzerland).

Footnotes
Received for publication June 18, 1973; accepted July 28.

Reprint requests to Clinique Universitaire de Pédiatrie, 1211 Geneva 4, Switzerland (Dr. Ferrier).

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