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We present a family with six children of first cousin parents, in which three present with microcephaly, hypertelorism, down-slanting palpebral fissures, ptosis, a broad nasal tip, a short webbed neck, mental retardation and seizures. Two differential diagnosis, the Noonan and the Baraitser-Winter
We report on an Italian patient affected by severe lymphedema of lower limbs, genitalia and face, intestinal lymphangiectasia, seizures, and moderate mental retardation. He has a flat face, flat nasal bridge, and hypertelorism. We propose that he presents with a severe form of Hennekam syndrome.
We report a 2-year-old female who initially presented with seizures, developmental delay and dysmorphic features and was found to have a 0.3 Mb deletion at chromosome 2q23.1 encompassing the critical seizure gene, MBD5. Her distinct physical features include bifrontal narrowing with brachycephaly,
We report a 2-year-old female who initially presented with seizures, developmental delay and dysmorphic features and was found to have a 0.3 Mb deletion at chromosome 2q23.1 encompassing the critical seizure gene, MBD5. Her distinct physical features include bifrontal narrowing with brachycephaly,
We describe three patients with a comparable deletion encompassing SLC25A43, SLC25A5, CXorf56, UBE2A, NKRF, and two non-coding RNA genes, U1 and LOC100303728. Moderate to severe intellectual disability (ID), psychomotor retardation, severely impaired/absent speech, seizures, and urogenital anomalies
Microdeletion 1q44 on the long arm of chromosome 1 leads to a phenotype that includes microcephaly, seizure, agenesis or hypogenesis of the corpus callosum, polydactyly, congenital heart defects and severe developmental delay along with characteristic facial dysmorphic signs. Until today, the
Three unrelated Puerto Rican boys, ranging in age from 3 to 4 years, had marked, central, non-progressive hypotonia, chronic constipation, severe psychomotor retardation, seizures or abnormal electroencephalograph or both, abnormal dermatoglyphics, delayed bone age, dysharmonic skeletal maturation,
In 34 patients with hypertelorism aged on the average 12.6 years, 24 underwent intracranial surgery (combined intra- and extracranial approach), 2 (moderate) U-osteotomy (subcranial approach), and 8 (mild) canthoplasties. Improved results were obtained in the patients with various types of
We describe a small, term, male infant with corticospinal tract aplasia secondary to motor cortex dysplasia from a neuronal proliferation and/or migrational defect. The infant also had microdolichocephaly, sloping forehead, hypertelorism, flat nose, apparently low-set ears, micrognathia,
36 patients with congenital hypertelorism, eight with Crouzon's disease, and three with a posttraumatic deformity, were operated with Tessier's technique with some modifications, i.e. the dura is not separated from the cribriform plate avoiding olfactory damage. The entire procedure for
BACKGROUND
The microdeletion of chromosome 22q11.2 is the most common human deletion syndrome. It typically presents early in life and is rarely considered in adult patients. As part of the manifestations of this condition, patients can have parathyroid glandular involvement ranging from
Forty patients with hypertelorism seen in the past 16 years were reviewed retrospectively. Combined intra- and extracranial surgical approach was used for 37 severe and moderate cases and subcranial approach (U-osteotomy) for 3 moderate cases. Gratifying results were obtained in patients with
Mutations in PIGN, resulting in multiple congenital anomalies-hypotonia-seizures syndrome, a glycosylphosphatidylinositol anchor deficiency, have been published in four families to date. We report four patients from three unrelated families with epilepsy and hypotonia in whom whole exome sequencing
Persistent hyperphosphatasia associated with developmental delay and seizures was described in a single family by Mabry et al. 1970 (OMIM 239300), but the nosology of this condition has remained uncertain ever since. We report on five new patients (two siblings, one offspring of consanguineous
BACKGROUND
Heparan sulfate proteoglycans are vital components of the extracellular matrix and are essential for cellular homeostasis. Many genes are involved in modulating heparan sulfate synthesis, and when these genes are mutated, they can give rise to early-onset developmental disorders affecting