Synonyms of Adams Oliver Syndrome 1 Absence Defect of Limbs, Scalp and Skull 2 Aplasia Cutis Congenita with Terminal Transverse Limb Defects 3 Congenital Scalp Defects with Distal Limb Reduction Anomalies
(December 2015) Adams–Oliver syndrome (AOS) is a rare congenital disorder characterized by defects of the scalp and cranium (cutis aplasia congenita), transverse defects of the limbs, and mottling of the skin.
PMID 1951437. Zapata HH, Sletten LJ, Pierpont ME (1995). "Congenital cardiac malformations in Adams–Oliver syndrome". Clin Genet. 47 (2): 80–84. doi: 10.1111/j.1399-0004.1995.tb03928.x.
Most children with Adams–Oliver syndrome can likely expect to have a normal life span. However, individuals with more severe scalp and cranial defects may experience complications such as hemorrhage and meningitis, leading to long-term disability.
General Discussion. Adams-Oliver syndrome (AOS) is a rare inherited condition present at birth that involves changes to the limbs and scalp. Symptoms may include areas of missing skin on the scalp, limb abnormalities, heart defects, neurological concerns, and issues with the eyes.
Adams–Oliver syndrome (AOS) is a rare congenital disorder characterized by defects of the scalp and cranium (cutis aplasia congenita), transverse defects of the limbs, and mottling of the skin....Diagnosis.Major featuresMinor featuresAplasia cutis congenitaCongenital heart defectFamily history of AOSVascular anomaly1 more row
Adams-Oliver syndrome can have different inheritance patterns. When caused by mutations in the ARHGAP31, DLL4, NOTCH1, or RBPJ gene, the condition is inherited in an autosomal dominant pattern. Autosomal dominant inheritance means that one copy of the altered gene in each cell is sufficient to cause the disorder.
There is no cure for Adams–Oliver syndrome; treatment focuses in on symptom management and can include: Skin grafting and cranial or other surgery to repair skin lesions/skull abnormalities. Physical therapy, surgery and use of prostheses for limb malformations.
Adams-Oliver syndrome (AOS) was first reported by the American pediatric cardiologist Forrest H. Adams and the clinical geneticist Clarence Paul Oliver in a family with eight affected members [1]. AOS is characterized by the combination of congenital scalp defects (aplasia cutis congenita) (Fig.
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Adams-Oliver syndrome (AOS) is a rare disease characterized by an abnormality of skin development (areas of missing skin on the scalp called aplasia cutis congenita) and malformations of the hands and feet (terminal transverse limbs defects). The aplasia cutis may involve only the skin or include the skull under the skin. The terminal transverse limb defects may include webbed fingers or toes ( syndactyly) and short or missing fingers or toes ( brachydactyly or oligodactyly, respectively). Other signs and symptoms may include additional skeletal abnormalities of the limbs; cutis marmorata telangiectatica congenita (a blood vessel disorder); pulmonary hypertension; heart defects; and neurological problems. [1] Severity can vary greatly among people with the syndrome and may be lethal in some cases. [2] AOS is caused by mutations in any of six known genes. It may be inherited in an autosomal dominant or autosomal recessive manner, depending on the genetic cause. In some cases, the genetic cause is unknown. [1] Treatment depends on the severity and specific features in each person, and often involves a team of specialists. [3]
The long-term outlook ( prognosis) for people with Adams-Oliver syndrome (AOS) varies depending on the specific signs and symptoms present in each person and the degree of severity of these signs and symptoms.
When a person with an autosomal dominant form of AOS has children, each child has a 50% (1 in 2) chance to inherit the disease-causing mutation. When AOS is caused by mutations in the DOCK6 or EOGT gene, the syndrome is inherited in an autosomal recessive manner. [1] .
Adams-Oliver syndrome (AOS) may be inherited in an autosomal dominant or autosomal recessive manner, depending on the gene mutation . [1] When AOS is caused by a mutation in the ARHGAP31, DLL4, NOTCH1, or RBPJ gene, the syndrome is inherited in an autosomal dominant manner. [1] . This means that having a mutation in only one copy ...
AOS is caused by mutations in any of six known genes. It may be inherited in an autosomal dominant or autosomal recessive manner, depending on the genetic cause. In some cases, the genetic cause is unknown. [1] .
Adams-Oliver syndrome (AOS) is an extremely rare inherited disorder characterized by defects of the scalp and abnormalities of the fingers, toes, arms, and/or legs. The physical abnormalities associated with this disorder vary greatly among affected individuals. Some cases may be very mild while others may be severe. In infants with Adams-Oliver syndrome, scalp defects are present at birth (congenital) and may include one or multiple hairless scarred areas that may have abnormally wide (dilated) blood vessels directly under the affected skin. In severe cases, an underlying defect of the bones of the skull may also be present. In addition, infants with this disorder typically have malformations of the hands, arms, feet, and/or legs. These range from abnormally short (hypoplastic) fingers and toes to absent hands and/or lower legs. In some cases, additional abnormalities may also be present. Most cases of AOS appear to follow autosomal dominant inheritance but autosomal recessive inheritance has also been reported.
The scalp defects associated with Adams-Oliver syndrome resemble aplasia cutis congenita. (For more information on meningitis and aplasia cutis congenita, see the Related Disorders section of this report.)
The physical findings associated with Adams-Oliver syndrome (e.g, scalp defects and abnormalities of the fingers, toes, arms, and/or legs) may vary greatly in severity from case to case (variable expressivity). In addition, all of the characteristics associated with this disorder may not be manifested in all those who inherit the gene (incomplete penetrance).
The abnormal gene can be inherited from either parent or can be the result of a new mutation (gene change) in the affected individual. The risk of passing the abnormal gene from affected parent to offspring is 50% for each pregnancy. The risk is the same for males and females.
Genetic counseling will be of benefit for affected individuals and their families. Family members of affected individuals should also receive regular clinical evaluations to detect any symptoms and physical characteristics that may be potentially associated with Adams-Oliver syndrome. Other treatment for this disorder is symptomatic and supportive.
Infants with Adams-Oliver syndrome also exhibit malformations of the fingers, toes, hands, and/or feet. Some affected infants may have abnormally short fingers and/or toes (digits) due to underdevelopment (hypoplasia) or absence of certain bones in the hands and/or feet (metacarpals and/or phalanges [terminal]). In severe cases, the fingers, toes, hands, feet, and/or lower legs may be partially or completely absent. Affected individuals may also have webbing of toes (syndactyly) and underdeveloped (hypoplastic) toenails. In general, the lower extremities (i.e., lower legs, feet, and toes) are more severely affected.
Infants with Adams-Oliver syndrome may exhibit one or multiple hairless scarred areas of skin on the scalp . The depth and size (diameter) of the lesions vary greatly from case to case. In some affected individuals, the scalp lesions may become ulcerated or infected. However, in most cases, these skin lesions heal without treatment (spontaneously) within the first few months of life. In some infants with Adams-Oliver syndrome, abnormally wide (dilated) blood vessels may be apparent under the skin lesions. In severe cases, these fragile dilated blood vessels may bleed (hemorrhage).
The severity of the disorder varies greatly among affected individuals. Aplasia cutis congenita, transverse limb defects and cutis marmorata telangiectica are characteristic of this condition.
Most cases are transmitted as an autosomal dominant trait, but some show autosomal recessive transmission with familial or sporadic occurrence.
Limb and scalp defects require orthopedic treatment. Management requires a comprehensive multidisciplinary approach.
Autosomal recessive forms of Adams-Oliver syndrome include AOS2, caused by mutations in the DOCK6 gene and AOS4, caused by mutations in the EOGT gene. Differential diagnosis of aplasia cutis congenita may include Scalp-ear-nipple (SEN) syndrome caused mutations in the KCTD1 gene and Johanson-Blizzard syndrome caused by mutations in the UBR1 gene.
Adams-Oliver Syndrome (AOS) is a rare disorder characterized by the combination of congenital limb abnormalities and scalp defects, often accompanied by skull ossification defects. Most patients have aplasia cutis congenita, a condition characterized by localized areas of missing skin typically occurring on the top of the head (the skull vertex). There is great variability in the severity of the disease among affected individuals. Typical findings are malformations of the hands, arms, feet and/or legs that range from hypoplastic fingers and toes to absent hands and/or lower legs, and occasionally intellectual disability. Aplasia cutis congenita, transverse limb defects and cutis marmorata telangiectica are characteristic of this condition. AOS may also be associated with a variety of physical anomalies including congenital cataract, strabismus and microphthalmia, congenital heart malformations, and hepatoportal sclerosis. Congenital heart defects have been estimated to be present in 20% of AOS patients; reported malformations include ventricular septal defects, anomalies of the great arteries and their valves, and tetralogy of Fallot. Autosomal dominant forms of Adams-Oliver syndrome include AOS1, which is caused by heterozygous mutations in the ARHGAP31 gene, AOS3, caused by mutations in the RBPJ gene, AOS5, caused by mutations in the NOTCH1 gene and AOS6, caused by mutations in the DLL4 gene. Autosomal recessive forms of Adams-Oliver syndrome include AOS2, caused by mutations in the DOCK6 gene and AOS4, caused by mutations in the EOGT gene. Differential diagnosis of aplasia cutis congenita may include Scalp-ear-nipple (SEN) syndrome caused mutations in the KCTD1 gene and Johanson-Blizzard syndrome caused by mutations in the UBR1 gene.
Adams–Oliver syndrome is a rare condition characterised by various malformations of the limbs and abnormal skin development, particularly on the scalp.
Aplasia cutis congenita. This describes localised areas of missing skin on the scalp which are scarred and hairless; these lesions can become infected and there can be underlying deformity of the bone.
Adams–Oliver syndrome is caused by genetic mutations in at least 6 genes:
Long-term prognosis for Adams–Oliver syndrome is difficult to predict: it is not adequately described in medical literature due to a dearth of cases. It should be noted that, in absence of major abnormalities, those with this condition should have a normal lifespan. See smartphone apps to check your skin.