Harlequin color change

Harlequin color change (pronunciation: /ˈhɑːrləkwɪn ˈkʌlər tʃeɪndʒ/) is a rare and transient skin condition typically seen in newborn infants.

Etymology

The term "Harlequin" is derived from the French word 'Arlequin', referring to a comic character in Italian plays, known for his multicolored checkered costume. The term "color change" refers to the distinct half-and-half color change observed in the condition.

Definition

Harlequin color change is a benign, self-limiting condition characterized by sudden, transient changes in skin color. It is usually observed in newborns within the first two weeks of life. The condition is named for the distinct pattern of color change, where one half of the body, divided sagittally, changes color, becoming erythematous (red), while the other half remains normal or pale.

Symptoms

The primary symptom of Harlequin color change is a sudden, dramatic change in skin color. This change typically affects one half of the body, while the other half remains unaffected. The affected side of the body may turn a deep red color, while the unaffected side remains the normal skin color or turns pale. This color change can last from one to 20 minutes and may recur several times a day.

Causes

The exact cause of Harlequin color change is unknown. However, it is believed to be related to immature autonomic nervous system control of blood vessels in the skin. Other factors such as changes in body position, ambient temperature, and general health status of the infant may also play a role.

Treatment

As Harlequin color change is a benign and self-limiting condition, no specific treatment is usually required. The condition typically resolves on its own within a few weeks. However, it is important to monitor the infant for any other signs of illness or distress.

Related Terms

• Erythema
• Autonomic nervous system
• Newborn

External links

• Medical encyclopedia article on Harlequin color change
• Wikipedia's article - Harlequin color change

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