Radiological follow-up of inverted papilloma.

The aim of this study was to describe cross-sectional imaging features of recurrent papilloma of the nasal fossa and paranasal sinuses and to evaluate the role of MR and CT in the postoperative follow-up of this lesion. Magnetic resonance imaging and CT of ten patients who presented recurrence of inverted papilloma were reviewed and correlated to initial imaging, endoscopy, and surgical reports. Imaging patterns of recurrent inverted papilloma are identical to those of initial tumors and recurrence location is closely related to the site of the former lesion.

[Geometric modeling and virtual endoscopy of the laryngo-tracheal lumen from computerized tomography images: initial applications to laryngo-tracheal pathology in the child].

Endoscopy is an essential stage in the management of laryngo-tracheal disorders in the infant, but remains a difficult procedure. CT scanning is used to confirm the abnormality and to estimate the degree to which the airway is compromised. The authors describe virtual endoscopy of the larynx and trachea based on a mathematical model, itself constructed from CT images.