Steeple sign

Steeple Sign is a term used in radiology to describe the narrowing of the upper trachea, which can be seen in a lateral neck radiograph. This sign is often associated with croup, a common respiratory condition in children.

Overview

The Steeple Sign is a radiographic feature that is seen in lateral neck radiographs of patients with croup. The sign is named for its resemblance to a church steeple, with the narrowing of the trachea creating a pointed appearance. This is caused by the swelling of the subglottic tissues, which results in the narrowing of the airway.

Causes

The most common cause of the Steeple Sign is croup, a condition that is characterized by a barking cough, hoarseness, and stridor. Croup is typically caused by a viral infection, most commonly the parainfluenza virus. Other causes can include bacterial infections, allergies, and inhaled irritants.

Diagnosis

The diagnosis of the Steeple Sign is typically made through a lateral neck radiograph. This imaging study can reveal the characteristic narrowing of the trachea. However, the presence of the Steeple Sign is not definitive for croup, as it can also be seen in other conditions such as epiglottitis and tracheitis.

Treatment

The treatment for the Steeple Sign is typically aimed at treating the underlying cause. In the case of croup, this can include the use of corticosteroids to reduce inflammation and swelling in the airway. In severe cases, hospitalization may be required.

See Also

• Croup
• Radiology
• Trachea
• Parainfluenza virus
• Epiglottitis
• Tracheitis

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