What is Dissecting Cellulitis of the Scalp (PCAS)?

What Is Dissecting Cellulitis Of The Scalp (PCAS)?

Dissecting Cellulitis of the Scalp (PCAS) also known as Perifolliculitis capitis abscedens et suffodiens is a rare condition that specifically affects the scalp.

The main cause is a direct infection in the scalp. The condition is complex and it can become serious.

Also, it can result in complications. Moreover, it is a chronic condition that is usually long-lasting.

This specific disease is different from the most common types of cellulitis infections. In this article, we will provide more details about this condition.

Also, we will explain the standard treatment and prevention methods.



There remain some gaps in understanding the primary causes of this condition. Ultimately, it involves an infection within the hair follicles. Tissue exposure can be a factor in this. It can lead to the eruptions which cause visible lesions.



Each specific case can vary. But, there are some common symptoms which manifest with this condition. The most common symptoms are outbreaks. These manifest in lesions around the scalp. The nodules appear in patchy areas.

Additionally, they become tender and painful. The presentation of crusts on the scalp is the main symptom of this condition. Flare-ups and outbreaks are common symptoms of this chronic condition.



Any of the above symptoms need a checkup from a doctor. A doctor can make an accurate diagnosis. But, the rare nature of the disease means that a misdiagnosis can sometimes occur. Moreover, it can be difficult to confirm the condition with an initial checkup. Testing of the sores can rule out other infections.

A doctor will ask the individual questions about their health. They will also take a look at their full health history and allow them to rule out specific conditions.

The diagnosis process for PCAS can be longer than the common forms of cellulitis. This is due to its rare prevalence. Additionally, there are other conditions with similar symptoms.



There is no cure for this chronic condition. Thus, treatment aims to lessen the impact of the symptoms. Additionally, treatment involves preventing complications from occurring. One common form of treatment for dissecting cellulitis of the scalp is a course of antibiotics, which prevents further infections.

It is essential to follow the doctor’s instructions. You should always finish a course. The lesions can be painful and itchy.

Thus, topical steroids are a medicine which is given for treatment. Topical steroids help to reduce inflammation and can also help to manage these lesions. They can make the lesions less tender.

Topical steroids can have a noticeable impact on an individual. Overall, it can improve their quality of life.

The main focus of treatment is reducing the possibility of outbreaks. That involves specialist care and regular check-ups.

There is no cure for this disease. But, a programme of careful management can help to maximize the quality of life.

Severe cases can involve specific surgical procedures. Treatment aims to prevent relapses. But often it is unsuccessful.

New treatments make use of specific types of inhibitors. These include TNF-a inhibitors which have shown potential. Overall, these methods of treatment show good potential.


Prevention of Dissecting Cellulitis of the Scalp

Although, this disease is rare, there are certain groups which are at a higher risk. African American Males within the ages of 18 and 40 are at an increased risk of having this disease. But, there are some necessary precautions you can follow to cut your risk.

Following basic hygiene precautions are essential. It is vital to keep your scalp clean. Moreover, regular scalp wash can be enough for prevention.



This rare yet chronic condition can cause severe misery. But, there are certain forms of treatment which can help to ease symptoms.

You will now have a better understanding of the dissecting cellulitis of the scalp condition. You will also now know how you can ensure prevention.

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Last article update: 4/29/2019