Cases reported "Abnormalities, Multiple"

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1/690. Diprosopus (partially duplicated head) associated with anencephaly: a case report.

    Craniofacial duplication (diprosopus) is a rare form of conjoined twin. A 16 year old mother with a twin pregnancy delivered one normally formed baby boy and one diprosopus male. The malformed baby was 33 weeks of gestation with a single trunk, normal limbs and various degrees of facial duplication. Of the following structures there were two of each: noses, eyes, ears (and one dimple), mouths, tongues and, with bilateral central cleft lips and cleft palates. This was associated with holoprosencephaly and craniorachischisis. Internal organs showed no duplication. There were multiple congenital anomalies including diaphragmatic hernia, small lungs, two lobes of the right lung, ventricular septal defect, small adrenal gland and small left kidney with short ureter. The body also had a short neck, small chest cavities and kyphosis. X-ray revealed duplication of the vertebral column. The case presented here represents a type II of diprosopia of Rating (1933) and is the least common type reported. We also reviewed 22 recently reported cases of diprosopus. In addition to facial duplication, anencephaly, neural tube defect and cardiac malformations represent the more common congenital abnormalities associated with diprosopus. The pathogenesis of diprosopus is not well understood. Factors that play a role in diprosopus are probably similar to those factors (genetic, environmental and abnormal placental circulation) which affect monozoygotic twins as observed in this case report. Early ultrasonography diagnosis of diprosopus permits one to consider a vaginal therapeutic abortion.
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keywords = chest
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2/690. Autosomal dominant secundum atrial septal defect with various cardiac and noncardiac defects: a new midline disorder.

    We report on a Lebanese family in which 12 persons had an atrial septal defect and various cardiac and noncardiac anomalies. Cardiac anomalies are left axis deviation of QRS, right bundle branch block, atrial fibrillation, wolff-parkinson-white syndrome, nodal atrioventricular rhythm, aortic stenosis, pulmonic valve stenosis, mitral stenosis (lutembacher syndrome), and low implantation of the tricuspid valve (Ebstein disease). Noncardiac abnormalities consisted specially of the presence of hypertelorism, cleft lip, and pectus excavatum. This combination appears to constitute a hitherto undescribed autosomal dominant midline disorder of the heart and upper half of the body with almost full penetrance and variable expressivity. The mutation does not map to any known locus involved in atrial septal defect or conduction block.
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ranking = 6.4523416271512
keywords = upper
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3/690. An unusual case of hypoglossia-hypodactyly syndrome.

    Hypoglossia-hypodactyly syndrome is seen very rarely and its appearance is sporadic. Different degrees of tongue hypoplasia and transverse deficiencies in the upper extremities are seen. In the patient presented there was a sulcuslike deformity at the midline of the lower lip, and the continuity of the orbicularis oris muscle was disturbed at this location, in addition to the classic findings of hypoglossia-hypodactyly syndrome. A description of this variant and its treatment are described.
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ranking = 6.4523416271512
keywords = upper
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4/690. Acromelic frontonasal dysostosis.

    We report on 3 male and 2 female infants with acromelic frontonasal dysostosis. All 5 had a frontonasal malformation of the face and nasal clefting associated with striking symmetrical preaxial polysyndactyly of the feet and variable tibial hypoplasia. In contrast, the upper limbs were normal. This rare variant of frontonasal dysplasia may represent a distinct autosomal-recessive disorder. We suggest that the molecular basis of this condition may be a perturbation of the Sonic Hedgehog (SHH) signalling pathway, which plays an important part in the development of the midline central nervous system/craniofacial region and the limbs.
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keywords = upper
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5/690. trisomy 10: first-trimester features on ultrasound, fetoscopy and postmortem of a case associated with increased nuchal translucency.

    We report a case of the prenatal diagnosis of trisomy 10 in a fetus presenting with an increased nuchal translucency thickness (5 mm) on a routine first-trimester anomaly scan at 12 weeks' gestation. Multiple abnormalities were diagnosed by ultrasound and fetoscopy. karyotyping on chorionic villus sampling led to the diagnosis of homogeneous trisomy 10 which was confirmed by in situ hybridization on fetal tissue samples. Postmortem examination confirmed major anatomical malformations, including facial cleft, arthrogryposis of the upper and lower limbs and bilateral diaphragmatic hernia, and also revealed hypoplastic lungs, right renal agenesis and a complex cardiac malformation. trisomy 10 is an uncommon chromosomal abnormality that is likely to be associated with increased fetal nuchal translucency. This case also emphasizes the value of a detailed anomaly scan in high-risk patients in the first trimester of pregnancy.
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ranking = 6.4523416271512
keywords = upper
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6/690. Duplication within chromosome 5q characterized by fluorescence in situ hybridization.

    We present a 16-month-old boy with developmental delay, minor anomalies, small penis, and lymphedema of the upper limbs. Routine cytogenetic analysis suspected a duplication of 5q. Fluorescent in situ hybridization (FISH) with a cosmid probe (MCC at the 5q22 APC region) showed tandemly duplicated fluorescent signals on one of chromosomes 5, whereas FISH with three YAC probes (TYAC12 at 5q35, HTY3182 at 5q34, and TYAC139 at 5q31) did not give duplicated signals. These findings indicate a duplication of 5q22 band in one chromosome 5. The boy we describe here is the first case of a pure partial duplication of 5q to be proven by FISH techniques. A review of previously reported cases of putative partial 5q duplication showed no consistent phenotype.
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ranking = 6.4523416271512
keywords = upper
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7/690. Frontonasal dysplasia, macroblepharon, eyelid colobomas, ear anomalies, macrostomia, mental retardation, and CNS structural anomalies. A new syndrome?

    We report a Brazilian girl, born to normal and non-consanguineous parents and presenting, among other signs, brachyacrocephaly, a wide forehead, hypertelorism, wide palpebral fissures with multiple eyelid colobomas, a broad and high nasal root, an absent nasal tip, a wide columella, a long and smooth philtrum, a carp-like mouth, macrostomia, a thin upper lip with midline notching, submucous cleft of the soft palate, a small and grooved chin, ear anomalies, Dandy-Walker anomaly, a structural anomaly of the corpus callosum, grey matter heterotopia, and mental retardation. The whole clinical picture of the present patient suggests a 'new' type of frontonasal dysplasia and main differential diagnosis includes the acrofrontofacionasal dysostosis 2 syndrome (MIM 201181). Other differential diagnoses are discussed.
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ranking = 6.4523416271512
keywords = upper
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8/690. Sialuria in a Portuguese girl: clinical, biochemical, and molecular characteristics.

    Sialuria, a disorder of sialic acid (NeuAc) metabolism characterized by increased free NeuAc in the cytoplasm of cells, is due to failure of CMP-Neu5Ac to feedback inhibit UDP-N-acetylglucosamine (UDP-GlcNAc) 2-epimerase. We now describe the fifth patient in the world with sialuria, a 7-year-old Portuguese girl with developmental delay, hepatomegaly, coarse facies, and urinary excretion of 19 micromol of free NeuAc/mg creatinine. The patient's fibroblasts stored excess free NeuAc in the cytosolic fraction, and fibroblast UDP-GlcNAc 2-epimerase activity was only 26% inhibited by 100 microM CMP-Neu5Ac (normal, 79%). The patient's UDP-GlcNAc 2-epimerase gene displayed an R266Q mutation in only one allele, consistent with known sialuria mutations and with the proposed dominant nature of this disorder. Extensive description of sialuria patients will help to define the clinical and biochemical spectrum of this disease.
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ranking = 0.12643623169338
keywords = back
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9/690. achondroplasia-hypochondroplasia complex in a newborn infant.

    We describe the case of an 8-month-old girl with achondroplasia-hypochondroplasia complex. The diagnosis was suggested antenatally when obstetrical ultrasonography at 27 weeks of gestation showed short limbs, small chest, and macrocephaly. The father has achondroplasia due to the common G1138A (G380R) mutation in the fibroblast growth factor receptor 3 (FGFR3) gene, while the mother has hypochondroplasia due to the C1620G (N450K) mutation in the FGFR3 gene. Neither had had genetic counseling or molecular testing prior to the pregnancy. Antenatal ultrasound study at 29 weeks of gestation showed a large head, very short limbs, and a small chest; the findings were more severe than in achondroplasia or hypochondroplasia alone. The patient was born by cesarean section at 37 weeks of gestation and had rhizomelic shortness of limbs with excess skin creases, large head, and small chest, diagnostic of achondroplasia. Radiographs showed shortness of the long bones and flaring of the metaphyses. She had mild hypoplasia of lungs. Molecular testing showed both the G1138A and the C1620G mutations in FGFR3, confirming the diagnosis of achondroplasia-hypochondroplasia complex. At 8 months, she has disproportionate shortness of the long bones and a large head with frontal bossing and a depressed nasal bridge. Her chest remains small, and she is on home oxygen at times of respiratory stress. She has a large gibbus. She is delayed in her motor development and has significant head lag. To our knowledge, there is only one previously published report of achondroplasia-hypochondroplasia complex.
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ranking = 4
keywords = chest
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10/690. Compound heterozygosity for the achondroplasia-hypochondroplasia FGFR3 mutations: prenatal diagnosis and postnatal outcome.

    We report on a male newborn infant, a compound carrier of heterozygous mutations in the FGFR3 gene causing achondroplasia and hypochondroplasia. The mother has achondroplasia and carries the common G1138 (G380R) mutation in the FGFR3 gene; the father has hypochondroplasia due to the C1620A (N540K) mutation in the same gene. The fetus was found to carry both mutations diagnosed prenatally by amniocentesis at 17.6 weeks of gestation, following maternal serum screening which showed an increased risk for down syndrome (1:337). Detailed fetal ultrasound studies showed a large head, short limbs, and a small chest at 22 weeks of gestation. The changes were more severe than those of either achondroplasia or hypochondroplasia. The patient was born by cesarean section at 38 weeks of gestation and had rhizomelic shortness of the upper and lower limbs with excess skin folds, large head, enlarged fontanelles, frontal bossing, lumbar gibbus, trident position of the fingers, and a narrow chest with a horizontal line of demarcation at the narrowest area of the chest. Skeletal radiographs showed shortness of the long bones and flare of metaphyses. He had respiratory difficulties and was treated with nasal prongs. seizures developed on day 2 of life and recurred on day 9 and responded to treatment with phenobarbital. brain computed tomographic scan showed possible grey matter heterotopia, partial agenesis of the corpus callosum, and cortical dysplasia. To our knowledge, there are only two previously published cases of compound heterozygous achondroplasia-hypochondroplasia patients. The diagnosis was confirmed by dna mutation analysis of the FGFR3 gene in both cases.
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ranking = 9.4523416271512
keywords = upper, chest
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