A case of Pityriasis rosea concurrent with the novel influenza A (H1N1) infection
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Updated: Jun 13, 2026

Rapid Molecular Detection and Differentiation of Influenza Viruses A and B
Published on: January 30, 2017
Thamer F Mubki1, Salaman A Bin Dayel, Razan Kadry
1Dermatology Department, Prince Salman Hospital, Riyadh, Saudi Arabia.
Abstract:
Pityriasis rosea is a common skin disease with a self-limiting course. Multiple etiologies including viruses, bacteria, and fungi have been investigated in an attempt to confirm a casual association. Pityriasis rosea has not been associated with influenza virus, but has been associated with herpes simplex virus types 6 and 7. We encountered a case of a proven pandemic H1N1 infection associated with a clincopathological diagnosis of pityriasis rosea. We conclude that influenza A (H1N1) virus could either be a primary cause of pityriasis rosea or a trigger for reactivation of other viral causes.
Insights
Pityriasis rosea, a common skin condition, may be linked to influenza A (H1N1) virus. This virus might directly cause the rash or reactivate other underlying viral triggers.
Area of Science:
- Dermatology
- Virology
- Infectious Diseases
Background:
- Pityriasis rosea is a common, self-limiting skin condition.
- Its exact cause remains unclear, with various pathogens investigated.
- Previous research has not linked pityriasis rosea to influenza viruses.
Observation:
- A case study documented a patient with confirmed pandemic H1N1 influenza infection.
- The patient also presented with clinical and pathological features of pityriasis rosea.
- This observation suggests a potential association between H1N1 and the skin disease.
Findings:
- The study identified a correlation between influenza A (H1N1) infection and pityriasis rosea.
- Influenza A (H1N1) virus is proposed as a potential etiological agent.
- The virus may act as a primary cause or a trigger for pityriasis rosea.
Implications:
- This finding expands the known potential causes of pityriasis rosea.
- Further research is warranted to confirm the causal link between H1N1 and pityriasis rosea.
- Understanding this association could influence diagnostic and treatment strategies for pityriasis rosea.
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Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Cytomegalovirus Disease
