Localized Psoriasis Treatment with Low-Dose Radiation Therapy in Knoxville, TN
For focal psoriasis plaques that have not responded to topical steroids, vitamin D analogs, or phototherapy, LDRT at Heelex Medical is a targeted option for treatment-resistant local disease.
About psoriasis and LDRT
Psoriasis is a chronic immune-mediated condition that causes thick, scaly plaques on the skin. Most patients are managed with topical steroids, vitamin D analogs, calcineurin inhibitors, phototherapy (UVB or PUVA), and for more severe disease, systemic therapy including biologics. The majority of patients respond well to these approaches.
A subset of patients have one or two stubborn local plaques that resist every standard topical and phototherapy approach. This is where LDRT has a role.
How LDRT treats focal psoriasis
Low-dose radiation delivered to a focal psoriatic plaque can produce meaningful local clearing in plaques that have failed standard treatment. The treatment modulates the local immune and inflammatory environment driving the lesion. It is delivered externally over a series of brief sessions, with no anesthesia and no downtime.
Who is a candidate?
- Biopsy- or clinically-confirmed localized psoriasis
- Failed topical steroids and vitamin D analogs
- Phototherapy that did not clear the plaque
- Stable, focal disease (rather than widespread, rapidly changing disease)
- Patients on biologics who have a stubborn residual plaque
What to expect
The consultation includes a clinical exam of the affected area and a discussion of your treatment history. If LDRT is appropriate, treatment is delivered over a series of brief, painless sessions. We coordinate with your dermatologist on overall disease management.
Frequently asked questions
Is this a replacement for systemic psoriasis therapies?
No. Systemic therapies are appropriate for widespread psoriasis. LDRT is for stubborn, focal plaques that resist topical and phototherapy treatment — a complement to systemic therapy, not a replacement.
Can it treat psoriasis on the scalp or nails?
Treatable locations and protocols are determined at consultation. Some sites are better suited than others, and we will be honest about what LDRT can and cannot do for your specific presentation.
Will the plaque come back?
Psoriasis is a chronic, relapsing condition by its nature. LDRT can produce meaningful local clearing, but underlying disease activity continues elsewhere. We discuss realistic expectations at the consultation.
Working With Your Care Team
Your dermatologist knows your history and your options better than anyone. We don't replace them, and we wouldn't want to. We're a resource for them — for patients who have a stubborn, localized plaque that hasn't cleared with topical, light, or systemic care. You stay in their care: we treat only what's referred, keep your doctors informed, and refer you back to them. We're not here to take anyone's patients.
Scientific references
Warner JA, Cruz PD Jr. (2008). Grenz ray therapy in the new millennium: still a valid treatment option?. Dermatitis.
Open on PubMedSeegenschmiedt MH, Micke O, Niewald M, et al. (2015). DEGRO guidelines for radiotherapy of benign diseases — psoriasis. Strahlentherapie und Onkologie.
Open on PubMed
Is Low-Dose Radiation Therapy safe?
The dose used for benign conditions is a small fraction of cancer-treatment radiation — roughly 10–25× lower — delivered in a few short sessions. Low-dose radiation therapy for benign disease has decades of clinical use, and side effects are uncommon and typically mild.
Every treatment plan is prepared by a board-certified medical physicist and reviewed by a licensed physician. Whether it's the right option for you — and any personal considerations — is decided together during your consultation.