Omphalocele-exstrophy of the bladder (cloaca)-imperforate anus-spinal defects (OEIS) complex describes a rare grouping of more commonly occurring component malformations. We report two cases of OEIS complex diagnosed prenatally by ultrasound and magnetic resonance imaging (MRI). In both cases, OEIS complex was suspected by conventional sonography in the second trimester, and fetal MRI was performed at 27 and 32 weeks of gestation. Conventional sonography revealed low abdominal wall mass, spina bifida, absent bladder and ambiguous genitalia, but those findings were inconclusive. Using fetal MRI, we were able to detect omphalocele, imfraumbilical mass connected to gut tract, absent bladder, ambiguous external genitalia and spinal defect. Our findings suggest that fetal MRI is a useful tool for prenatal diagnosis of OEIS complex. MRI helps prenatal counseling and planning of postnatal early treatment strategy.
Hypophosphatasia is an inheritable disorder characterized by defective bone mineralization and a deficiency of tissue-nonspecific alkaline phosphatase (TNSALP) activity. Screening for mutations in the TNSALP gene allows genetic counseling and prenatal diagnosis of the disease in families with severe forms of hypophosphatasia. A 33-year-old, gravida 4, para 3 Japanese woman was referred to Nagoya City University Hospital for prenatal genetic counseling because of two previous occurrences of fetal bone anomalies. The molecular examination showed that the fetus was homozygous for the TNSALP gene mutation c.1559delT, each parent being heterozygous. Genetic counseling was offered and at the next pregnancy, chorionic villus sampling was performed, whereupon genetic analysis confirmed that the fetus did not carry the familial mutation c.1559delT. Postnatal molecular genetic analysis using the cord tissue can provide a diagnosis of lethal hypophosphatasia and prenatal genetic diagnosis of the TNSALP gene allows time for parental counseling and delivery planning.
Microangiopathic antiphospholipid-associated syndromes (MAPSs) are reported as encompassing several conditions mainly affecting the microvasculature of selected organs: the liver in HELLP syndrome (hemolysis, elevated liver enzymes, and low platelet); kidney, brain, and skin in TTP (thrombotic thrombocytopenic purpura). It is predominant in patients with catastrophic antiphospholipid syndrome (APS). A recent report suggests that APS is not only a thrombotic disease but also associated with microangiopathic features, and it can explain the greater prevalence of HELLP syndrome in these patients. We here report a case of MAPS during pregnancy associated with systemic lupus erythematosus (SLE) in early second trimester.
Our results suggest that the difference of expression of IDO and dysfunctional activation of IDO in villi may play an important role in unexplained recurrent miscarriage.
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