Recessive X-linked ichthyosis associated with hypertrophic pyloric stenosis: a chance occurrence?

The association of recessive X-linked ichthyosis (RXLI) and hypertrophic pyloric stenosis (HPS) has been considered to be due to a probable contiguous gene defect. However, there are several reports of patients with large deletions on both sides of the steroid sulphatase gene (responsible for RXL1) that show no signs of HPS. We report the third pedigree wherein RXL1 was associated with HPS.

Cytogenetics of 50 patients with mental retardation and multiple congenital anomalies and 50 normal subjects. Madison blind study IV.

The chromosomes of 50 idiopathic mentally retarded patients with at least three other anomalies and 50 normal subjects were analyzed from randomized coded slides. The chromosomally abnormal cases were also studied by means of Q-banding. Seven of the patients showed a chromosome anomaly.

Essential tremor, nystagmus and duodenal ulceration. A "new" dominantly inherited condition.

The familial occurrence of essential tremor combined with (congenital) nystagmus, duodenal ulceration and a narcolepsy-like sleep disturbance caused by an autosomal dominant gene with high penetrance and fairly uniform expressivity is reported in a family of Swedish-Finnish ancestry. Twelve of 17 affected family members had essential tremor which began between 30-40 years of age and which could be controlled temporarily by alcohol; this resulted in alcoholism in several affected individuals. The most severly affected persons showed cerebellar signs which may reflect a possible pathogenetic relationship of the syndrome to the genetic cerebellar atrophies.

Partial 12p deletion: a cause for a mental retardation, multiple congenital abnormality syndrome.

A severely mentally retarded man displayed the following main symptoms: short stature, microcephaly, antimongoloid slant of palpebral fissures, big ears with hyperplastic helices, imperfect dental enamel, short and webbed neck, short arms, short hands, brachymetaphalangy, short second fingers, broad thumbs, short metatarsal bones, and unusually big first toes. It seems almost certain that the syndrome was caused by a chromosome deletion involving about half of 12p which was present in all of the lymphocytes examined.

Turner's syndrome and 46,X,i(Yq) karyotype.

A patient with features of Turner's syndrome is reported. In her karyotype there were 46 chromosomes including 15 chromosomes in the C group and one metacentric marker the size of a No. 16.