Table 2 Application of Yamaguchi clinical criteria in presented patient
Yamaguchi criteria | Patient’s characteristics |
|---|---|
Major Yamaguchi criteria | |
Fever of at least 39 °C lasting at least 1 week | + |
Arthralgias or arthritis lasting 2 weeks or longer | + |
Typical rash (maculopapular, nonpruritic) during febrile episodes | – |
Leukocytosis (10,000/μL or greater) with at least 80% granulocytes | – |
Minor Yamaguchi criteria | |
Sore throat | – |
Lymphadenopathy | + |
Hepatomegaly or splenomegaly | – |
Abnormal liver function studies | + |
Negative antinuclear antibodies and rheumatoid factor | + |
Exclusions | |
Infection | Done |
Malignancies: mainly lymphoproliferative | Done |
Other rheumatological disorders | Done |