Osteoma cutis

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Osteoma cutis
Synonyms
Pronounce	N/A
Specialty	Dermatology
Symptoms	Hard, bony nodules on the skin
Complications
Onset
Duration
Types	Primary, secondary
Causes
Risks
Diagnosis	Skin biopsy, Imaging studies
Differential diagnosis	Calcinosis cutis, Pilomatricoma
Prevention
Treatment	Surgical excision, Laser therapy
Medication
Prognosis	Generally good
Frequency	Rare
Deaths

Osteoma cutis is a rare medical condition characterized by the formation of bone tissue in the skin. This condition can be either primary, where the bone formation is not associated with any known cause, or secondary, where the bone formation is a result of another condition or disease.

Causes

The exact cause of primary osteoma cutis is unknown. However, it is believed to be a result of a genetic mutation. Secondary osteoma cutis is usually associated with conditions such as acne, dermatofibrosis, scleroderma, or trauma to the skin.

Symptoms

The most common symptom of osteoma cutis is the presence of small, hard nodules under the skin. These nodules are usually painless and can vary in size. Other symptoms may include skin discoloration and a change in skin texture.

Diagnosis

Diagnosis of osteoma cutis is usually made through a physical examination and a biopsy of the affected skin. Imaging tests such as X-rays or CT scans may also be used to confirm the diagnosis.

Treatment

Treatment for osteoma cutis is usually not necessary unless the nodules are causing discomfort or are cosmetically undesirable. In such cases, surgical removal of the nodules may be considered.

See also

• Dermatology
• Bone tissue
• Skin disease