Steatocystoma simplex

Steatocystoma simplex
Steatocystoma - intermed mag.jpg
Synonyms	Simple sebaceous cyst
Pronounce	N/A
Specialty	N/A
Symptoms	N/A
Complications	N/A
Onset	N/A
Duration	N/A
Types	N/A
Causes	N/A
Risks	N/A
Diagnosis	N/A
Differential diagnosis	N/A
Prevention	N/A
Treatment	N/A
Medication	N/A
Prognosis	N/A
Frequency	N/A
Deaths	N/A

Steatocystoma simplex is a rare cutaneous condition characterized by the development of solitary or multiple sebaceous cysts in the skin. Unlike steatocystoma multiplex, which involves multiple cysts, steatocystoma simplex typically presents as a single cyst.

Presentation

Steatocystoma simplex usually appears as a small, smooth, and round nodule beneath the skin. It is often found on the trunk, upper arms, or neck. The cyst is filled with an oily substance, which is a mixture of sebum and keratin. The cyst wall is thin and lined by epithelium similar to that of the sebaceous gland duct.

Pathophysiology

The exact cause of steatocystoma simplex is not well understood, but it is believed to arise from a developmental anomaly of the sebaceous gland. The cysts are lined by stratified squamous epithelium and contain sebaceous material, which gives them their characteristic appearance.

Diagnosis

Diagnosis of steatocystoma simplex is primarily clinical, based on the appearance and location of the cyst. A biopsy may be performed to confirm the diagnosis, especially if the cyst has atypical features. Histologically, the cyst is lined by stratified squamous epithelium and contains sebaceous material.

Treatment

Treatment is usually not necessary unless the cyst becomes symptomatic or for cosmetic reasons. Options include surgical excision or drainage. Complete excision is preferred to prevent recurrence.

Prognosis

The prognosis for steatocystoma simplex is excellent. The condition is benign and does not pose any significant health risks. Recurrence is uncommon if the cyst is completely excised.

Epidemiology

Steatocystoma simplex is a rare condition, and its exact prevalence is unknown. It can occur in individuals of any age but is most commonly seen in young adults.

Also see

• Steatocystoma multiplex
• Sebaceous cyst
• Epidermoid cyst
• Cutaneous condition

External links

• DermNet NZ: Steatocystoma

Relative incidence of various cutaneous cysts