Pityriasis rubra pilaris as a systemic disease

Pityriasis Rubra Pilaris: A Multicentric Case Series of 65 Spanish Patients

INTRODUCTION

PRP is a rare entity of unknown etiopathogenesis. Lack of management guidelines makes it a challenge for clinicians.

OBJECTIVE

To add our experience to increase evidence about PRP.

METHODS

We performed a retrospective, descriptive and multicentric study of 65 patients with PRP, being the largest European case series of patients with PRP.

RESULTS

PRP was more frequent in male patients with an average age of 51 years, but erythrodermic forms presented in older patients (average age 61 years). Six (75%) paediatric patients and ten (60%) non-erythrodermic adults controlled their disease with topical corticosteroids. On the contrary, 26 (68%) erythrodermic patients required biologic therapy as last and effective therapy line requiring an average of 6.5 months to achieve complete response.

CONCLUSION

Our study showed a statistical difference in terms of outcome and response to treatment between children or patients with limited disease and patients who develop erythroderma.

Pityriasis Rubra Pilaris: A Multicentric Case Series of 65 Spanish Patients

INTRODUCTION

PRP is a rare entity of unknown etiopathogenesis. Lack of management guidelines makes it a challenge for clinicians.

OBJECTIVE

To add our experience to increase evidence about PRP.

METHODS

We performed a retrospective, descriptive and multicentric study of 65 patients with PRP, being the largest European case series of patients with PRP.

RESULTS

PRP was more frequent in male patients with an average age of 51 years, but erythrodermic forms presented in older patients (average age 61 years). Six (75%) paediatric patients and ten (60%) non-erythrodermic adults controlled their disease with topical corticosteroids. On the contrary, 26 (68%) erythrodermic patients required biologic therapy as last and effective therapy line requiring an average of 6.5 months to achieve complete response.

CONCLUSION

Our study showed a statistical difference in terms of outcome and response to treatment between children or patients with limited disease and patients who develop erythroderma.

A Rare Post-infectious Rash: Pityriasis Rubra Pilaris After COVID-19 Infection

Pityriasis rubra pilaris (PRP) is a rare papulosquamous skin disorder that often presents with erythematous follicular-based hyperkeratotic papules that can become confluent and lead to erythroderma and electrolyte and thermoregulatory imbalances resulting from increased tissue perfusion and skin barrier breakdown. Due to this condition being uncommon, many specialties outside of dermatology are unfamiliar with this entity which poses unique diagnostic and management challenges. This case report involves a 55-year-old woman who presented to the emergency room with erythroderma secondary to PRP. It highlights the relevance of PRP in the context of in-hospital management by presenting the patient's clinical profile, diagnostic workup, and treatment plan. By emphasizing the distinctive clinical features and natural course of the disease, this report aims to enhance the understanding of this uncommon inflammatory skin condition.

Pityriasis in dermatology: an updated review

Dermatology has a very distinctive lexicon. The term pityriasis refers to several dermatologic conditions which all feature scaling of the skin. According to the Merriam-Webster dictionary, the term pityriasis was first used in print in 1684. Although the diseases beginning with the name pityriasis are of diverse causation, they do represent important dermatologic diseases, with some common and others quite rare. It is important for dermatologists to be aware and updated on all pityriasis conditions in dermatology.