Churg-Strauss Syndrome following PTU Treatment

Table 1

Criteria for the classification of Churg-Strauss syndrome (CSS). The presence of four or more of these criteria yields a sensitivity of 85% and a specificity of 99.7% for CSS according to the American College of Rheumatology (ACR).

ACR criteria	Present in our patient
Asthma	Yes
Eosinophilia >10% on differential white blood cell count	Yes
Mononeuropathy or polyneuropathy	Yes
Migratory or transient pulmonary opacities detected radiographically	Yes
Paranasal sinus abnormalities	No
Biopsy containing a blood vessel showing the accumulation of eosinophils in extravascular areas	—