2nd August 2023

Differential Diagnoses

Whilst infection is responsible for most pyrexial scenarios, other strong contributors include malignancy (especially lymphomas) and connective tissue diseases such as rheumatoid arthritis and Kawasaki disease (see table 3). Be astute to not be caught out by the occult pulmonary embolism or drug induced fever – ironically, antimicrobials and anti-epileptics are chief culprits here.

Table 3: A broad overview of non-infective causes of FUO