PubMed · 11528858
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Y Hata, Y Fukushima. 2001. [Penoscrotal transposition].. https://pubmed.ncbi.nlm.nih.gov/11528858/
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Rib anomalies may occur in isolation, as well as in association with abnormalities of vertebral segmentation and multi-system malformations. Specific entities include the VACTERL and MURCS associations, spondylocostal dysostosis, and spondylothoracic dysostosis. The relative significance of rib anomalies in other lesser known syndromes and associations remains unclear. To document the diagnoses and related defects in patients with rib anomalies as part of broader pattern of anomalies, we retrospectively identified 47 cases from a hospital population, and evaluated specific costal findings and associated birth defects. In our study, fusion was the most common pattern of rib anomaly (72%), followed by bifid (28%) and hypoplastic ribs (26%). Unrecognized patterns of multiple congenital anomalies (MCA) and VACTERL association were the commonest specific diagnoses with a frequency of 30 and 28%, respectively. An associated vertebral defect was found in 72% of the patients. Of those with no vertebral anomaly, the combinations of "rib and cardiac defects alone" and "rib and renal defects alone" were seen in one-third of the patients (4/13). Both the occurrence and type of rib anomaly were helpful in defining certain syndromes and enhanced the likelihood of identifying related malformations.
Kabuki syndrome is a multiple congenital anomaly/mental retardation syndrome which often involves recurrent infections. There is cumulative evidence of an immunodeficiency in Kabuki patients. We report a 2-year-old girl with typical Kabuki syndrome, who developed acute lymphocytic leukemia. The patient showed low levels of immunoglobulins G and A and a history of recurrent infections, that might indicate an immunodeficiency leading to an increased susceptibility to cancer. The girl was treated according to BFM protocols adapted to the patient's impaired cardiac situation and severe underweight. She achieved continual complete remission. Classical and molecular cytogenetic analyzes did not detect any abnormality.
Because matings between individuals of small stature is common, information regarding double heterozygosity for dominantly inherited bone growth disorders is of considerable importance. We summarize seven occurrences of four combinations of double heterozygosity (achondroplasia/spondyloepiphyseal dysplasia congenita, achondroplasia/pseudoachondroplasia, achondroplasia/osteogenesis imperfecta type I, achondroplasia/hypochondroplasia (non-FGFR3)), and review additional reports from the literature. Each of the eight different examples of double heterozygosity for bone growth disorders now reported results in distinct phenotypic features, differing severity, and disparate expectations. We document the natural history of each. The genetic processes underlying these disorders also are examined to assess whether knowledge of molecular mechanisms can be used to predict clinical severity.