The majority of abnormal sex chromosome complexes in the male have been considered to
be variants of Klinefelter's syndrome but an exception should probably be made in the case …

Males with 49, XXXXY chromosomal anomaly have a specific phenotype other than
Klinefelter's syndrome and its varients, although by some authors (Lejeune, 1965) it has …

A 4½-year-old white boy with 49 chromosomes and an XXXXY sex chromosome
complement is presented. The buccal smear revealed 3 chromatin bodies. Significant …

The XXXXY chromosome abnormality appears to be associated with a
clinicallyrecognizable syndrome of severe mental retardation, hypoplastic genitals, multiple …

Considerable delay in the appearance of bony epiphyses was indicated by a radiological
bone age of less than 4 months at the age of 13 months. A trial of thyroxin, though giving …

The most common sex chromosome complex in sex chromatin-positive males with
Klinefelter's syndrome is XXY. When the complex is XXYY or XXXY, the clinical findings do …

The XXXXY syndrome has several distinctive phenotypic features, the most prominent of
which are mental retardation and hypogonadism (small penis and small and/or …

The 49, XXXXY anomaly was found in a 2 ½‐year‐old boy with signs typical of that anomaly:
physical and mental retardation, hypogenitalism and certain mongoloid features …

Dermatoglyphics in XXYYKlinefelter's Syndrome MILTON ALTER,1 ROBERT GORLIN,'
JORGCJE YUNIS,: Page 1 Dermatoglyphics in XXYYKlinefelter's Syndrome MILTON ALTER,1 …

In a survey of mentally retarded males with small testes, a man was found whose sex
chromosome complement has been interpreted as XXYY. The family history gave no …