[Inverted papilloma of the nose and nasal sinuses. Radiological findings]

The pathological anatomy, clinical signs and the radiological image of the inverted papilloma of the nose are demonstrated on the basis of three histologically confirmed cases. The most frequent radiological finding is an unilateral, dense shadow in the region of the nasopharyngeal cavity in conjunction with a shadow in the adjacent maxillary sinus. The article discusses the staggered use of the radiological examination methods. Proof of osseous destructions is most reliably achieved via computed tomography. In case of an invasion into the endocranium, the roentgenologist should consider the possibility of a malignant transformation of the primarily benign tumour. Aggressive surgery is the therapy of choice. On account of the high tendency to relapses, it is suggested to do annual follow-up roentgenological examinations, preferably with the aid of computed tomography.