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Interstitial deletion 13q. Further delineation of the syndrome by clinical and high-resolution chromosome analysis of five patients

✍ Scribed by Tranebjaerg, Lisbeth ;Nielsen, Karen Brøndum ;Tommerup, Niels ;Warburg, Mette ;Mikkelsen, Margareta ;Reynolds, James F.

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
866 KB
Volume
29
Category
Article
ISSN
0148-7299

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✦ Synopsis

Five patients with interstitial deletion 13q are reported. High-resolution chromosome banding established the diagnosis in two cases and stated the exact breakpoints in three remaining cases. All parents had normal chromosomes. An unequal and so far unexplained sex ratio of previously published and present cases was found: M:F = 1:2.75. Moderate to severe growth retardation was prominent in all patients. The patients were followed with psychological tests and growth data for 3-10 years. Mild to moderate mental retardation was present. Considerable phenotypic similarities were found in two patients with de1(13)(q21.33 q31.3) and one with de1(13)(q14.3q22.3). Repeat ophthalmological examinations showed no evidence of retinoblastoma in a male with de1(13)(q13.lq21.1).

In conclusion, the long-term study of five patients with interstitial deletion 13q, all evaluated with high-resolution banding, contributed to a more reliable mental and growth prognosis in such patients.

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