Knowledge Why is it necessary for a laser device to offer multiple adjustable spot sizes for Folliculitis Decalvans treatment?
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Tech Team · Belislaser

Updated 3 days ago

Why is it necessary for a laser device to offer multiple adjustable spot sizes for Folliculitis Decalvans treatment?


Effective management of Folliculitis Decalvans and Dissecting Cellulitis demands adaptability. These conditions rarely present uniformly; they typically involve a mix of deep, specific lesions and broader areas of inflammation. Adjustable spot sizes are necessary because they allow the clinician to toggle between high-energy precision for individual nodules (using 3mm or 5mm spots) and efficient, uniform coverage for the wider scalp (using 10mm spots).

The core value of multiple spot sizes lies in differentiated treatment strategies: enabling the destruction of stubborn, localized lesions without sacrificing the speed and consistency required to treat the entire affected scalp.

The Role of Precision Targeting

To treat complex scalp pathologies effectively, you must be able to address distinct anatomical targets.

Targeting Localized Pathology

Folliculitis Decalvans and Dissecting Cellulitis are characterized by specific, often deep formations such as pustules, nodules, and small cicatricial (scarred) lesions.

High-Energy Concentration

Smaller spot sizes, specifically 3mm and 5mm, are designed to deliver high-energy precision.

Isolating Problem Areas

By restricting the beam diameter, clinicians can direct intense energy solely into the lesion. This spares the surrounding healthy tissue while ensuring the nodule receives the requisite fluence for effective treatment.

The Role of Broad Field Coverage

While individual lesions require focus, the underlying disease process often affects extensive portions of the scalp.

Ensuring Treatment Efficiency

Using a small spot size to treat a full scalp is clinically inefficient and time-consuming. A larger 10mm spot size allows for rapid coverage of extensive areas.

Uniform Heat Distribution

Beyond speed, larger spot sizes are critical for thermal consistency.

Preventing "Patchy" Results

When treating broad fields, a 10mm spot ensures the energy is applied uniformly. This prevents the uneven heating that often occurs when trying to stitch together hundreds of tiny pulses over a large surface.

Understanding the Operational Trade-offs

Selecting the wrong spot size for the specific clinical goal can compromise patient outcomes.

The Limitation of Small Spots

While 3mm spots offer high precision, they lack volumetric heating capability. Attempting to treat a large area with a small spot size often leads to "skip spots" (untreated areas) and inconsistent clinical endpoints.

The Limitation of Large Spots

Conversely, while a 10mm spot provides excellent coverage, it diffuses energy over a wider area. It may not achieve the peak energy density required to penetrate and resolve a dense, fibrotic nodule deeply embedded in the scalp.

Optimizing Your Treatment Strategy

Success relies on matching the geometry of the beam to the geometry of the disease.

  • If your primary focus is distinct lesions: Utilize 3mm or 5mm spot sizes to deliver high-energy precision directly into pustules and nodules.
  • If your primary focus is field management: Switch to a 10mm spot size to ensure uniform heat distribution and efficiency across the entire affected scalp.

The ultimate goal is a hybrid approach, using the device's versatility to customize the energy delivery for every square centimeter of the patient's tissue.

Summary Table:

Spot Size Clinical Application Primary Benefit
3mm - 5mm Localized pustules, nodules, & scarred lesions High-energy precision & deep lesion destruction
10mm Extensive scalp inflammation & field treatment Rapid coverage & uniform thermal distribution
Hybrid Use Complex cases with varied lesion density Optimized efficiency without sacrificing power

Elevate Your Clinical Outcomes with BELIS Precision Technology

To effectively treat complex conditions like Folliculitis Decalvans, your clinic requires medical-grade equipment that offers unmatched versatility. BELIS specializes in professional-grade aesthetic solutions, including advanced Diode, Nd:YAG, and Pico laser systems designed specifically for premium salons and medical clinics. Our devices provide the adjustable spot sizes and energy density needed to transition seamlessly between precision lesion targeting and efficient broad-field therapy.

Beyond laser systems, our portfolio includes HIFU, Microneedle RF, EMSlim body sculpting, and specialized Hydrafacial and skin testing devices to ensure your clinic provides comprehensive care.

Ready to upgrade your practice with the latest in medical-grade laser technology?

Contact BELIS Today to Request a Quote

References

  1. Rosa Giménez‐García, Teresa Dra. Primary Cicatricial Alopecia Successfully Treated with A Combination of Oral Zinc with Nd: YAG Laser. A Case Series of Five Patients. DOI: 10.20431/2456-0022.0501002

This article is also based on technical information from Belislaser Knowledge Base .

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