Oligodactyly

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Obesity, Sleep & Internal medicine
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Oligodactyly
File:Deux pieds 1 an.jpg Oligodactyly affecting the feet
Synonyms	Hypodactyly
Pronounce	N/A
Specialty	N/A
Symptoms	Fewer than five digits on a hand or foot
Complications	Functional impairment, cosmetic concerns
Onset	Congenital
Duration	Lifelong
Types	N/A
Causes	Genetic mutation, environmental factors
Risks	Family history of limb malformations
Diagnosis	Physical examination, imaging studies
Differential diagnosis	Polydactyly, syndactyly, ectrodactyly
Prevention	Genetic counseling
Treatment	Surgical intervention, prosthetics
Medication	N/A
Prognosis	Varies depending on severity and treatment
Frequency	Rare
Deaths	N/A

Oligodactyly is a congenital condition characterized by the presence of fewer than five fingers or toes on a hand or foot. It is a type of limb anomaly that can occur in isolation or as part of a syndrome. Oligodactyly can affect one or more limbs and varies in severity from mild to severe.

Etiology

Oligodactyly can result from genetic mutations, environmental factors, or a combination of both. It may occur as an isolated defect or as part of a genetic syndrome such as Poland syndrome or Apert syndrome. Genetic mutations affecting limb development pathways, such as those involving the SHH (Sonic Hedgehog) gene, can lead to oligodactyly.

Clinical Presentation

Patients with oligodactyly present with fewer than the normal number of digits on one or more limbs. The condition can be unilateral or bilateral and may involve the hands, feet, or both. The missing digits can be completely absent or represented by rudimentary structures.

Diagnosis

Diagnosis of oligodactyly is primarily clinical, based on physical examination. Prenatal diagnosis is possible through ultrasound imaging, which can detect limb anomalies in the fetus. Genetic testing may be conducted to identify any associated syndromes or genetic mutations.

Management

Management of oligodactyly depends on the severity of the condition and the presence of any associated syndromes. Treatment options may include:

• Surgical intervention: To improve function and appearance, especially if the condition affects the hands.
• Prosthetics: To aid in function, particularly for missing fingers or toes.
• Physical therapy: To enhance mobility and dexterity.

Prognosis

The prognosis for individuals with oligodactyly varies depending on the severity of the condition and any associated anomalies. Isolated oligodactyly generally has a good prognosis, with most individuals leading normal lives. However, when part of a syndrome, the overall prognosis depends on the associated conditions.

See also

• Polydactyly
• Syndactyly
• Limb development
• Congenital disorder