Fig. 2From: Successful management of severe asthma in a young boy with eosinophilic chronic rhinosinusitis who received omalizumab: a case reportEndoscopic images of the bilateral nasal cavity and histological analysis of the nasal polyps. a The endoscopic images show polyps in the bilateral nasal cavity. b Histological analysis shows numerous eosinophils in the polyps. Hematoxylin and eosin staining ×200. All paranasal sinuses were released, but after 4 months later, the nasal polyps recurredBack to article page