Cellular Dermatofibromas
Cellular dermatofibromas are a type of benign skin tumor, often appearing as firm nodules, commonly found on the legs.
What Makes Them Different?
Unlike other dermatofibromas that stay near the skin's surface (epidermis), cellular dermatofibromas extend deeper into the subcutaneous tissue. They are known for their tendency to recur after treatment, with about 1 in 10 cases resulting in localized tissue death (necrosis).
Are They Cancerous?
No, cellular dermatofibromas are not cancerous. However, they have a higher chance of spreading to other parts of the body compared to other types of dermatofibromas.
Who Gets Them?
Cellular dermatofibromas can affect people of all demographics, but they are most commonly seen in individuals aged 20 to 49, with a higher prevalence among women. They make up about 3% of all skin lesions.
Causes and Development
These growths can appear after skin injuries or even develop without any known cause. People with immune-related conditions like HIV/AIDS or leukemia may be more prone to developing multiple cellular dermatofibromas.
Recognizing the Symptoms
They usually present as small, round bumps, less than 1 cm in diameter, and can vary in color from flesh-toned to brown or reddish-brown. They are typically found on the arms or legs, often feeling firm and sometimes causing itchiness or tenderness. Some may have a dimpled appearance with a depressed center and raised edges.
Diagnosis and Tests
Doctors typically diagnose cellular dermatofibromas through visual examination. Sometimes, a skin biopsy is needed to confirm the diagnosis.
Treatment Options
While often harmless, larger or symptomatic dermatofibromas may be removed. This can be done with steroid injections to reduce size or discomfort, or through surgical excision in an office setting.
Preventing Recurrence
Unfortunately, there are no known ways to prevent cellular dermatofibromas from developing. However, they usually cause minimal discomfort and rarely recur after treatment.
Outlook
Cellular dermatofibromas have a higher chance of coming back after treatment compared to other types of dermatofibromas. However, they generally do not pose serious health risks.
Talking to Your Doctor
Patients should discuss any concerns with their healthcare provider, including the need for treatment, potential benefits and risks of removal, and ways to manage and prevent recurrence.
Differentiating from Moles
Unlike moles, cellular dermatofibromas can cause a dimple when gently pinched, indicating their attachment to deeper tissue layers.
