Cutaneous columnar cyst

Cutaneous Columnar Cyst
Synonyms	Columnar cyst of the skin
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A cutaneous columnar cyst is a type of skin cyst characterized by its columnar epithelial lining. These cysts are a rare form of epidermoid cysts and are typically benign.

Presentation

Cutaneous columnar cysts usually present as small, firm nodules on the skin. They are often found on the scalp, face, or neck, but can occur on any part of the body. The cysts are generally asymptomatic, but they can become inflamed or infected, leading to pain and redness.

Pathophysiology

The pathogenesis of cutaneous columnar cysts is not completely understood. They are thought to arise from the infundibulum of the hair follicle, similar to other types of epidermoid cysts. The columnar epithelium lining is what distinguishes them from other cysts.

Diagnosis

Diagnosis of a cutaneous columnar cyst is typically made through clinical examination and histopathology. A biopsy of the cyst will reveal the characteristic columnar epithelial lining. Dermatologists may use dermoscopy to aid in the diagnosis.

Treatment

Treatment is not always necessary for cutaneous columnar cysts unless they become symptomatic. Options include:

• Surgical excision: Complete removal of the cyst is the most definitive treatment.
• Incision and drainage: This may be performed if the cyst is infected.
• Topical antibiotics: Used if there is secondary infection.

Prognosis

The prognosis for cutaneous columnar cysts is excellent. They are benign and do not have malignant potential. Recurrence is uncommon after complete surgical excision.

See also

• Epidermoid cyst
• Pilar cyst
• Sebaceous cyst

External links

• Cutaneous Columnar Cyst on WikiMD