E4744. Assessing the Ultrasound Role in Anterior Larynx Pathology
  1. Eloy Naranjo Moreno; Hospital General Granollers
  2. Deysi García Figueredo; Hospital General Granollers
  3. Miguel Cuadrado Blázquez; Hospital General Granollers
  4. Pablo Grande Pérez; Hospital General Granollers
  5. Andrés Rodríguez Peña; Hospital General Granollers
  6. Clara Fernández Pérez-Torres; Hospital General Granollers
  7. Xavier Pruna Comelles; Hospital General Granollers
The larynx is a relatively small organ but highly complex and mobile, which makes its study difficult. Nowadays CT and MRI are widely used for the study of laryngeal pathology, but there is a lack of sensitivity for the assessment of some laryngeal lesions and their anterior extension. In this exhibit, we highlight the usefulness of ultrasound (US), including real-time US-CT/MRI fusion techniques, in the study of the larynx pathology.

Educational Goals / Teaching Points
Determine the anterior extralaryngeal extension of anterior commissure and true vocal cords tumors. Assess the infiltration of cartilaginous structures (thyroid cartilage). Ultrasound surveillance and control of laryngeal tumor recurrence. Neopharyx assessment (post treatment changes versus recurrence). Show image study correlation of laryngeal structures and pathology in real-time US-CT/MRI fusion. US-guided biopsy of suspicious for malignancy lesions.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
There is a need in radiology to improve diagnosis in related anterior larynx pathology given the anatomical complexity and lack of sensitivity of CT/MRI for assessment of anterior laryngeal lesions and their extension, because determining it could significantly modify the management of the patients (staging change and disease follow-up). We will discuss the normal anatomy, anterior extension of the larynx at diagnosis, normal posttreatments changes and signs of recurrence on US, and correlation with the other imaging modalities. In addition, we will share our institution’s experience for future improvements and expanded applications for radiology learning.

US and real-time US-CT/MRI fusion techniques are useful and increasingly essential for an accurate diagnosis and surveillance in patients with larynx pathology.