[Tumors of the oropharynx and oral cavity: MR, CT, PET-CT imaging]

Pretherapeutic imaging plays a central role in the management of tumors of the oropharynx and oral cavity. MR and, to a lesser extent, CT and F-18 FDG PET-CT are the imaging modalities of choice for pretherapeutic work-up of these lesions. Imaging protocols should be simple and reproducible, and should provide the key elements for treatment planning.

[Imaging of the post-irradiation larynx for laryngeal and hypopharyngeal carcinomas]

Imaging has a key role in the follow-up of patients treated for laryngeal or hypopharyngeal carcinoma. Imaging is complementary to clinical evaluation and has three goals: evaluation of chemo and radiation therapy; differentiation between complications and tumour recurrence; early detection of tumour recurrence, prior to clinical manifestations. Imaging may allow early detection of recurrences, when salvage treatment may still be less radical.

[Useful imaging of the ear]

Good anatomical knowledge is necessary to make an effective diagnosis in ear pathology. The purpose of this article is to summarize the main landmarks of the ear. Anatomic definitions of the external ear, middle ear, and bony labyrinth are described on routine spiral CT, and the anatomic definition of the membranous labyrinth and the cochleovestibular nerve on MRI is reviewed.