Macroglossia

Enlargement of the tongue

Macroglossia
Enlarged tongue with scalloped edges and smooth top surface
Synonyms	Enlarged tongue, big tongue
Pronounce
Field	Otolaryngology, Dentistry, Pediatrics, Medical genetics
Symptoms	Enlarged tongue, difficulty speaking, chewing, swallowing, drooling, airway obstruction
Complications	Speech difficulties, malocclusion, obstructive sleep apnea, feeding problems
Onset	Congenital or acquired
Duration	Chronic
Types	True macroglossia, relative macroglossia
Causes	Congenital hypothyroidism, Down syndrome, Beckwith-Wiedemann syndrome, amyloidosis, acromegaly, tumors
Risks	Genetic syndromes, metabolic disorders
Diagnosis	Clinical examination, imaging, biopsy (if tumor suspected)
Differential diagnosis	Lingual tumors, lymphangioma, hemangioma, muscle hypertrophy
Prevention	Depends on underlying cause; genetic counseling may be helpful
Treatment	Treat underlying condition, speech therapy, surgical reduction (glossectomy) in severe cases
Medication	Based on underlying cause (e.g., hormone therapy for hypothyroidism)
Prognosis	Good with appropriate treatment, varies based on cause and severity
Frequency	Rare
Deaths	Rare; can occur if airway is severely obstructed

Macroglossia is a medical condition characterized by an abnormally large tongue. This condition can cause difficulties with speech, mastication, and swallowing, and may lead to obstructive sleep apnea.

Causes

Macroglossia can be caused by a variety of factors, including congenital, acquired, and idiopathic origins.

Congenital Causes

• Beckwith-Wiedemann syndrome: A genetic disorder that often results in overgrowth and an increased risk of childhood cancer.
• Down syndrome: A genetic disorder caused by the presence of all or part of a third copy of chromosome 21.
• Congenital hypothyroidism: A condition present at birth that results in a deficiency of thyroid hormones.

Acquired Causes

• Amyloidosis: A condition where an abnormal protein, amyloid, builds up in organs and tissues.
• Acromegaly: A disorder caused by excess growth hormone, leading to enlarged body parts.
• Hypothyroidism: A condition where the thyroid gland does not produce enough thyroid hormone.

Idiopathic

In some cases, the cause of macroglossia is unknown, and it is referred to as idiopathic macroglossia.

Symptoms

The primary symptom of macroglossia is an enlarged tongue. This can lead to:

• Difficulty in speech articulation
• Problems with mastication and swallowing
• Obstructive sleep apnea
• Drooling
• Malocclusion or misalignment of teeth

Diagnosis

Diagnosis of macroglossia typically involves a physical examination and a review of the patient's medical history. Imaging studies such as MRI or CT scan may be used to assess the extent of tongue enlargement and to identify any underlying causes.

Treatment

Treatment for macroglossia depends on the underlying cause and the severity of the condition. Options may include:

• Speech therapy to improve articulation
• Orthodontic treatment to address dental issues
• Surgical reduction of the tongue in severe cases
• Treatment of underlying conditions such as hypothyroidism or amyloidosis

Prognosis

The prognosis for individuals with macroglossia varies depending on the cause and severity of the condition. Early diagnosis and treatment can improve outcomes and quality of life.

Related pages

• Beckwith-Wiedemann syndrome
• Down syndrome
• Amyloidosis
• Acromegaly
• Hypothyroidism