No abstract

Chromosome analysis in a newborn, the daughter of diabetic parents, who showed multiple dysmorphic signs and malformations revealed direct duplication of a long arm segment of chromosome 3(3q2100 leads to 3q2700). Both parents have normal karyotypes. Compilation of the phenotype stigmata with those of 7 other patients and 1 fetus with partial trisomy 3q confirmed that clinical recognition of this syndrome is possible. It is characterized by hypertrichosis, typical craniofacial dysmorphia, frequent organ malformations and skeletal anomalies, as well as a peculiar dermatoglyphic pattern. It is a severe genetic disturbance, leading to death in the first months of life in many cases and only symptomatic care is advised.

No abstract

A patient with clearly developed features of the full Lesch-Nyhan syndrome and complete lack of activity of hypoxynthine-phosphoribosyltransferase is described. The clinical picture was characterized by absence of spasticity, good control of autoaggression by behavior therapy, and no signs of renal insufficiency. After death, which was caused by a viral infection, pathological examination and a search for material immunologically cross-reacting with hypoxanthine-phosphoribosyltransferase were possible. In spite of increased serum urate levels and raised urinary uric acid excretion there were no signs of urate deposits or damage in the internal organs, including the kidneys. Crossreactive material was found in the liver, kidneys and spleen, a relatively rare finding in the full Lesch-Nyhan-syndrome. The absence of any specific pathological changes in the brain of this patient is in agreement with earlier reports.

No abstract