Weibman AR, et al. – The clinicians aimed to determine how region–specific tissue eosinophilia influenced the radiographic severity, comorbidity prevalence, and polyp recurrence risk following sinus surgery. Regardless of higher eosinophil cationic protein (ECP) in nasal polyp (NP), than in uncinate tissue (UT), eosinophilia in UT tissue served as a more clinically coherent biomarker of baseline radiographic severity, comorbid asthma and aspirin–exacerbated respiratory disease (AERD), and prospective polyp recurrence risk than NP eosinophilia.