BACKGROUND

Usually, cytogenetic analysis of Turner´s syndrome is presented as a single monosomic X cell line. Are rare the reported cases in which there are multiple cell lines and even less frequent descriptions of structural chromosomal aberrations of the Y-chromosome. Additionally, the cases reported to date do not include finger/palm process analysis. We present an infrequent case of a Turner syndrome with three different cell lines including a structural aberration of the Y-chromosome and to correlate with finger process and palm process analysis.

CLINICAL CASE

A 8-year-old female patient who did not show any Turnerian syndrome phenotypic characteristics except low height, 1.28 cm (under 3th percentile). Exploratory laparoscopy shows hypoplastic uterus, with rudimentary tubes, thin hypoplastic ovaries and normal inguinal rings without evidence of hernias. No testicular tissue was detected. Conventional cytogenetic findings in peripheral blood are: 46, XY; "C" banding 46, XY; FISH 45, X [230] / 46, XY [117] /46,X,dic.Y [64]. Finger process with increase of whorls was observed, coinciding with the increase in the number of ridges higher than that reported as normal (127 ± 0.8) and in the palm process the atd angle (92º), number of a-b crests (86) and the percentage of t (24.3%).

CONCLUSION

We discuss one of the few cases reported in the scientific literature of Turner syndrome with three different cell lines results from a non-dysfunctional post-zygotic etiology and its chromosomic structure; as well as the results of genetic, environmental and biochemical aspects of the finger/palm process and their correlation with the classical syndrome.