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anauxetic dysplasia 2

Description

Anauxetic Dysplasia 2: A Rare Spondyloepimetaphyseal Dysplasia

Anauxetic dysplasia 2 is a severe form of spondyloepimetaphyseal dysplasia, characterized by prenatal onset short stature, very short adult height, hypodontia (absence or underdevelopment of teeth), midface hypoplasia, and other skeletal abnormalities.

Key Features:

  • Prenatal onset short stature
  • Very short adult height
  • Hypodontia (absence or underdevelopment of teeth)
  • Midface hypoplasia
  • Other skeletal abnormalities

References:

  • [6] Description ... Anauxetic dysplasia is a spondyloepimetaphyseal dysplasia characterized by severe short stature of prenatal onset, very short adult height (...
  • [7] Anauxetic dysplasia 2 is a severe spondyloepimetaphyseal dysplasia characterized by prenatal onset short stature, very short adult height, hypodontia, midface ...

Note: The information provided is based on the search results and may not be an exhaustive list of features or characteristics.

Additional Characteristics

  • midface hypoplasia
  • prenatal onset short stature
  • very short adult height
  • hypodontia (absence or underdevelopment of teeth)
  • other skeletal abnormalities

Signs and Symptoms

Signs and Symptoms of Anauxetic Dysplasia

Anauxetic dysplasia is a rare genetic disorder characterized by extremely short stature (dwarfism) and other skeletal abnormalities, an unusually large range of joint movement (hypermobility), dental problems, and distinctive facial features.

Physical Characteristics:

  • Short Stature: Individuals with anauxetic dysplasia are born with extremely short stature, which can be evident prenatally or in the newborn period.
  • Joint Hypermobility: Affected individuals have an unusually large range of joint movement, making their joints more flexible than usual.
  • Dental Problems: Dental abnormalities, such as tooth decay and gum disease, are common in individuals with anauxetic dysplasia.
  • Distinctive Facial Features: Individuals with this condition often have distinctive facial features, including hypertelorism (wide-set eyes), midface hypoplasia, macroglossia (enlarged tongue), and prognathism (protruding jaw).

Other Skeletal Abnormalities:

  • Widened Metaphyses: The metaphyses (the wide part of the bone) are widened in individuals with anauxetic dysplasia.
  • Short Long Bones: Affected individuals have short long bones, which can lead to difficulties with mobility and balance.
  • Elongated Fibulae: The fibulae (one of the two bones in the lower leg) are elongated in individuals with this condition.

Additional Symptoms:

  • Atlantoaxial Subluxation: Individuals with anauxetic dysplasia may experience atlantoaxial subluxation, which is a condition where the top two vertebrae become misaligned.
  • Hair Hypoplasia: Some affected individuals may have hair hypoplasia, which can contribute to their overall appearance.

Age of Onset:

  • Prenatal: Symptoms of anauxetic dysplasia can be evident prenatally or in the newborn period.
  • Infancy and Childhood: The condition is often diagnosed in infancy or childhood, as affected individuals typically have short arms and legs, a small chest, and a unique spinal structure.

References:

  • [1] Anauxetic dysplasia is a disorder characterized by extremely short stature (dwarfism) and other skeletal abnormalities, an unusually large range of joint movement (hypermobility), dental problems, and distinctive facial features. Explore symptoms, inheritance, genetics of this condition. ([Source 14])
  • [2] Individuals with anauxetic dysplasia are born with extremely short stature, which can be evident prenatally or in the newborn period. ([Source 10])
  • [3] Affected individuals have an unusually large range of joint movement, making their joints more flexible than usual. ([Source 11])

Additional Symptoms

  • Distinctive Facial Features
  • Joint Hypermobility
  • Dental Problems
  • Widened Metaphyses
  • Short Long Bones
  • Elongated Fibulae
  • Atlantoaxial Subluxation
  • Hair Hypoplasia
  • short stature

Diagnostic Tests

Based on the provided context, it appears that diagnostic tests for anauxetic dysplasia 2 (ANXD2

Additional Diagnostic Tests

  • Complete Blood Count
  • Urinalysis
  • Erythrocyte Sedimentation Rate
  • Bone density scan
  • C-Reactive Protein
  • Imaging studies (X-rays, CT scans, MRIs)
  • Genetic testing for ANXD2 gene mutations

Treatment

Based on the provided context, it appears that there is limited information available on the specific treatment for Anauxetic Dysplasia Spectrum Disorders, including Anauxetic Dysplasia 2.

However, according to search result [3], Orthopedic surgery may be complicated by low bone density in individuals with Anauxetic dysplasia. Additionally, Treatment with recombinant growth hormone has not shown any sustained benefit in persons with this condition.

Regarding the treatment of underlying infections based on their type, location, and severity, immediate antiviral treatment with intravenous high-dose acyclovir for varicella is considered [1].

It's also mentioned that supportive care for symptoms may be required, which can include blood transfusions [8]. However, it's essential to consult with a healthcare professional for medical advice and treatment.

Regarding the specific treatment of Anauxetic Dysplasia 2, there is limited information available in the provided context. However, it's worth noting that cartilage-hair hypoplasia-anauxetic dysplasia spectrum disorders are characterized by severe disproportionate (short-limb) short stature [14].

In terms of management and treatment, surgery may be needed to fuse unstable cervical vertebrae and/or to treat progressive kyphoscoliosis that compromises lung function in AD [10]. Corrective osteotomies may also be required for progressive varus deformity of the lower extremities.

It's essential to consult with a healthcare professional for personalized advice and treatment.

Recommended Medications

  • Blood transfusions
  • Recombinant growth hormone
  • Intravenous high-dose acyclovir

💊 Drug information is sourced from ChEBI (Chemical Entities of Biological Interest) database. Always consult with a healthcare professional before starting any medication. Click on any medication name for detailed information.

Differential Diagnosis

The differential diagnosis of anauxetic dysplasia includes other metaphyseal dysplasias such as Schmid dysplasia, Jansen dysplasia, Shwachman-Diamond syndrome, and Omenn syndrome [6]. These conditions share similar skeletal abnormalities with anauxetic dysplasia, making it essential to rule them out through comprehensive diagnostic testing.

Some key features that distinguish anauxetic dysplasia from these differential diagnoses include:

  • Schmid dysplasia: This condition is characterized by metaphyseal flaring and irregularities, but it typically does not involve short stature or the other systemic features seen in anauxetic dysplasia [6].
  • Jansen dysplasia: Jansen dysplasia is a rare form of metaphyseal dysplasia that presents with severe short stature, but it often involves additional features such as cleft palate and cardiac anomalies [6].
  • Shwachman-Diamond syndrome: This condition is characterized by pancreatic insufficiency, skeletal abnormalities, and short stature, but it typically does not involve the same degree of metaphyseal dysplasia seen in anauxetic dysplasia [9].
  • Omenn syndrome: Omenn syndrome is a rare immunodeficiency disorder that presents with severe short stature, skin lesions, and other systemic features, but it typically does not involve the skeletal abnormalities characteristic of anauxetic dysplasia [9].

To accurately diagnose anauxetic dysplasia, it is essential to consider these differential diagnoses and perform comprehensive diagnostic testing, including genetic analysis and radiographic evaluation.

Additional Information

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It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with questions about your medical condition.