Foix–Chavany–Marie syndrome

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Foix–Chavany–Marie syndrome
Synonyms	Opercular syndrome, bilateral anterior opercular syndrome
Pronounce	N/A
Specialty	N/A
Symptoms	Facial diplegia, dysarthria, dysphagia, anarthria, automatic-voluntary dissociation
Complications	Aspiration pneumonia, malnutrition
Onset	Sudden or gradual, depending on cause
Duration	Variable, often chronic
Types	N/A
Causes	Stroke, trauma, infection, tumor
Risks	Hypertension, diabetes, smoking, hyperlipidemia
Diagnosis	Clinical examination, MRI, CT scan
Differential diagnosis	Locked-in syndrome, pseudobulbar palsy, Moebius syndrome
Prevention	N/A
Treatment	Speech therapy, physical therapy, occupational therapy, nutritional support
Medication	N/A
Prognosis	Variable, depends on underlying cause and treatment
Frequency	Rare
Deaths	N/A

Foix–Chavany–Marie syndrome (FCMS), also known as bilateral anterior opercular syndrome, is a rare neurological disorder characterized by the loss of voluntary control over the muscles of the face, tongue, pharynx, and masticatory muscles, while involuntary and reflexive movements remain intact. This condition is named after the French neurologists Charles Foix, Jean Alfred √âmile Chavany, and Julien Marie, who first described it in 1926.

Clinical Features

Patients with Foix–Chavany–Marie syndrome typically present with:

• Dysarthria: Difficulty in articulating words due to muscle weakness.
• Dysphagia: Difficulty in swallowing.
• Facial diplegia: Paralysis of the facial muscles on both sides.
• Preservation of reflexive movements such as blinking and emotional expressions.

Pathophysiology

The syndrome results from bilateral lesions in the anterior operculum, which is part of the cerebral cortex involved in motor control of the face and mouth. These lesions can be caused by various factors, including:

• Stroke
• Traumatic brain injury
• Infections such as encephalitis
• Tumors
• Neurodegenerative diseases

Diagnosis

Diagnosis of FCMS is primarily clinical, supported by imaging studies such as magnetic resonance imaging (MRI) or computed tomography (CT) scans that reveal bilateral lesions in the anterior operculum. Electromyography (EMG) and nerve conduction studies may also be used to assess the extent of muscle involvement.

Treatment

There is no specific treatment for Foix–Chavany–Marie syndrome. Management focuses on addressing the underlying cause and providing supportive care, which may include:

• Speech therapy
• Physical therapy
• Nutritional support to manage dysphagia
• Medications to control symptoms such as muscle spasticity

Prognosis

The prognosis of FCMS varies depending on the underlying cause and the extent of the brain lesions. Some patients may experience partial recovery of function, while others may have persistent deficits.

See also

• Stroke
• Dysarthria
• Dysphagia
• Cerebral cortex
• Traumatic brain injury
• Encephalitis
• Neurodegenerative diseases