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La Semana Medica Sep 1960
Topics: Humans; Neck
PubMed: 13695666
DOI: No ID Found -
Boletines Y Trabajos. Sociedad de... Aug 1960
Topics: Humans; Internet; Neck
PubMed: 13695665
DOI: No ID Found -
Journal of the American Academy of... Apr 2020Sprengel deformity is the main congenital shoulder deformity seen in children. First described by Otto Sprengel in 1891, it consists of a high-riding, dysplastic, and...
UNLABELLED
Sprengel deformity is the main congenital shoulder deformity seen in children. First described by Otto Sprengel in 1891, it consists of a high-riding, dysplastic, and malrotated scapula leading to functional and cosmetic impairments. It has never been reported in siblings.
CASE PRESENTATION
Two sisters, 8 and 9 years old, presented for an evaluation of atraumatic limitation in the shoulder range of motion and neck webbing with an unknown family history. Physical examination revealed a small high-riding scapula, webbed neck, and painless limitation in shoulder abduction (<70°) and flexion (<80°). The 9-year-old sibling had a bilateral shoulder involvement, and the younger had unilateral. Imaging revealed bony and fibrous omovertebral connections between the dysplastic scapulas and cervical spine along with Klippel-Feil deformities. Both sisters underwent scapula repositioning via a modified Woodward procedure. The omovertebral connection was resected followed by scapula derotation and inferior migration. Both had a dramatic improvement in cosmesis and near-complete restoration of shoulder function at follow-up.
CONCLUSIONS
Although uncommon, Sprengel deformity results in notable derangement of shoulder function. If untreated, children experience difficulty with most overhead activities and often have cosmetic reports. Although no previous genetic link has been identified, its presence in biological sisters suggests that more research is needed.
Topics: Cervical Vertebrae; Child; Congenital Abnormalities; Female; Humans; Scapula; Shoulder Joint; Siblings
PubMed: 32377613
DOI: 10.5435/JAAOSGlobal-D-19-00120 -
Annual Review of Genomics and Human... 2005Noonan syndrome is a pleiomorphic autosomal dominant disorder with short stature, facial dysmorphia, webbed neck, and heart defects. In the past decade, progress has... (Review)
Review
Noonan syndrome is a pleiomorphic autosomal dominant disorder with short stature, facial dysmorphia, webbed neck, and heart defects. In the past decade, progress has been made in elucidating the pathogenesis of this disorder using a positional cloning approach. Noonan syndrome is now known to be a genetically heterogeneous disorder with nearly one half of cases caused by gain-of-function mutations in PTPN11, the gene encoding the protein tyrosine phosphatase SHP-2. Similar germ line mutations cause two related genetic disorders, Noonan-like disorder with multiple giant cell lesion syndrome and LEOPARD syndrome, and somatic PTPN11 mutations can underlie certain pediatric hematopoietic malignancies, including juvenile myelomonocytic, acute lymphoblastic, and acute myelogenous leukemias. A mouse model of PTPN11-related Noonan syndrome was recently generated, providing a reagent for studying disease pathogenesis in greater depth as well as experimenting with novel therapeutic strategies.
Topics: Animals; Female; Genetic Linkage; Genotype; History, 19th Century; History, 20th Century; Humans; Intracellular Signaling Peptides and Proteins; Leukemia; Male; Mice; Models, Molecular; Mutation; Noonan Syndrome; Paternal Age; Phenotype; Protein Tyrosine Phosphatase, Non-Receptor Type 11; Protein Tyrosine Phosphatases
PubMed: 16124853
DOI: 10.1146/annurev.genom.6.080604.162305 -
Minerva Pediatrica Jun 2008Noonan syndrome (NS) is a rare genetic disorder, revealing autosomal dominant trait. It is a multiface condition that is characterized by a series congenital... (Review)
Review
Noonan syndrome (NS) is a rare genetic disorder, revealing autosomal dominant trait. It is a multiface condition that is characterized by a series congenital malformations including facial anomalies, postnatal growth retardation, webbing of the neck, pectus excavatum/carinatum, pulmonic stenosis and undescended testicles in boys. The incidence of NS is estimated to be between 1:1000 and 1:2500 in all live births. A DNA test for mutation analysis can be carried out on blood, chorionic villi and amniotic fluid samples. Signs and symptoms lessen with age and most adults with NS do not require special medical care.
Topics: Child; Child, Preschool; Female; Humans; Infant; Infant, Newborn; Male; Noonan Syndrome
PubMed: 18487980
DOI: No ID Found -
PeerJ 2022Mesosaurs are the first secondarily aquatic amniotes and one of the most enigmatic clades of reptiles from the early Permian. They have long puzzled paleontologists with...
Mesosaurs are the first secondarily aquatic amniotes and one of the most enigmatic clades of reptiles from the early Permian. They have long puzzled paleontologists with their unique morphologies: possessing an elongated skull with thin needle-like teeth, a long neck, large webbed hindlimbs, banana-shaped pachyosteosclerotic ribs, and a long tail. Here, we look at a large dataset of morphometric measurements from 270 mesosaur specimens in collections around the world. These measurements characterize skull, tooth, and limb proportions and their variation with size. This data presents evidence of surprising ontogenetic changes in these animals as well as new insights into their taxonomy. Our results support the recent hypothesis that is the only valid species within Mesosauridae and suggest that "" and "" represent immature stages or incomplete specimens of by showing that all three species occupy an incomplete portion of the overall size range of mesosaurs. Under the single-species hypothesis, we highlight a number of ontogenetic trends: (1) a reduction in skull length accompanied by an elongation of the snout within the skull, (2) an elongation of teeth, (3) a reduction in hind limb length, and (4) a reduction in manus length. Concurrent with these changes, we hypothesize that mesosaurs went through a progressive ecological shift during their growth, with juveniles being more common in shallow water deposits, whereas large adults are more frequent in pelagic sediments. These parallel changes suggest that mesosaurs underwent a diet and lifestyle transition during ontogeny, from an active predatory lifestyle as juveniles to a more filter-feeding diet as adults. We propose that this change in lifestyle and environments may have been driven by the pursuit of different food sources, but a better understanding of the Irati Sea fauna will be necessary to obtain a more definitive answer to the question of young mesosaur diet.
Topics: Animals; Skull; Reptiles; Tooth; Head; Diet
PubMed: 36132215
DOI: 10.7717/peerj.13866 -
Urologia Internationalis 2022Mixed gonadal dysgenesis is the most common chromosomal abnormality with ambiguous genitalia, defined as a 45,X/46,XY mosaicism. It can present with a normal male...
Mixed gonadal dysgenesis is the most common chromosomal abnormality with ambiguous genitalia, defined as a 45,X/46,XY mosaicism. It can present with a normal male phenotype, ambiguous genitalia, or features of Turner syndrome. A 14-year-old patient was referred to the genetics clinic due to hypospadia, cryptorchidism, and aortic coarctation. During the physical examination, short stature, webbed neck, and Blashko lines on his back were noted. He had a previous karyotype reported as normal. However, due to an inadequate evolution and a low resolution on the previous test, a higher resolution karyotype was performed, identifying a mosaicism 45,X/46,XY. A multidisciplinary board examined the case, and follow-up with tumor markers was carried out to evaluate the presence of gonadoblastoma, one of the main complications in these patients. Treatment should be transdisciplinary and focused on the particular characteristics of each case. Other treatment alternatives include corrective surgery and hormonal therapy.
Topics: Disorders of Sex Development; Female; Gonadal Dysgenesis, Mixed; Humans; Male; Mosaicism; Phenotype; Turner Syndrome
PubMed: 34929697
DOI: 10.1159/000519368 -
American Journal of Obstetrics and... May 1972
Classic pages in obstetrics and gynecology by Henry H. Turner. A syndrome of infantilism, congenital webbed neck, and cubitus valgus. Endocrinology, vol. 23, pp. 566-574, 1938.
Topics: Endocrinology; History, 20th Century; Turner Syndrome; United States
PubMed: 4557013
DOI: No ID Found -
BMJ Case Reports May 2019Multiple pterygium syndrome of lethal type is a very rare genetic condition affecting the skin, muscles and skeleton. It is characterised by minor facial abnormalities,...
Multiple pterygium syndrome of lethal type is a very rare genetic condition affecting the skin, muscles and skeleton. It is characterised by minor facial abnormalities, prenatal growth deficiency, spine defects, joint contractures, and webbing (pterygia) of the neck, elbows, back of the knees, armpits and fingers. We present a case of lethal multiple pterygium syndrome born at our hospital proven by the genetic analysis showing a double homozygous mutation.
Topics: Abnormalities, Multiple; Consanguinity; DNA Mutational Analysis; Disease Susceptibility; Fatal Outcome; Genetic Counseling; Genetic Heterogeneity; Humans; Infant, Newborn; Male; Malignant Hyperthermia; Metalloendopeptidases; Mutation; Pedigree; Receptors, Nicotinic; Skin Abnormalities
PubMed: 31068350
DOI: 10.1136/bcr-2018-229045