Fig. 1

Non-tumoral pathology affecting maxillary sinus, showing the main radiological and the histopathological aspects. a Mucormycosis. b Retention cyst. c Mucocele. d Polyp. e Inverted papilloma. f Non-necrotising granulomatosis. From left to right: coronal/axial sections and histopathology with hematoxylin-eosin