Wissler's Syndrome Associated with Parainfluenza 2 Infection

Area of Science:

• Pediatrics
• Infectious Diseases
• Rheumatology

Background:

• Wissler's syndrome, a rare condition, typically presents with recurrent fever, rash, and joint inflammation.
• Previous cases have often been associated with bacterial infections, leading to a search for bacterial etiologies.

Purpose of the Study:

• To investigate the etiology of Wissler's syndrome in a pediatric case.
• To determine if viral infections can cause Wissler's syndrome.

Main Methods:

• Clinical case presentation of a 9-year-old boy with symptoms consistent with Wissler's syndrome.
• Extensive microbiological and serological testing to exclude bacterial and common viral pathogens.
• Specific testing for parainfluenza 2 virus infection and analysis of urinary findings.

Main Results:

• The patient presented with classical Wissler's syndrome, including high fever, exanthema, arthritis, and marked eosinophilia.
• Bacteriological tests and other viral screenings were negative, except for parainfluenza 2, with which serological evidence was found.
• Urinary findings supported the parainfluenza 2 diagnosis, and pulmonary infiltrates were observed, some classified as eosinophilic.

Conclusions:

• This case demonstrates that Wissler's syndrome can be caused by a viral infection, specifically parainfluenza 2.
• The syndrome may represent an individual's allergic-type reaction to various infectious agents, both bacterial and viral.
• Further research is needed to understand the immunopathogenesis of Wissler's syndrome.