Imaging modalities that may be used to assess the extent of laryngeal cancer include which of the following?

Imaging modalities that may be used to assess the extent of laryngeal cancer include which of the following?

• A. CT scan only.
• B. CT scan, MRI, and PET scan may be used.
• C. Ultrasound only.
• D. X-ray of the skull.

Answer: (B)

Assessing how far laryngeal cancer has spread relies on imaging that can map both local tumor extent and distant disease. CT scans provide quick, detailed views of the larynx and neck, especially useful for identifying invasion of cartilage and bone and for evaluating regional lymph nodes. MRI offers superior soft-tissue contrast, making it ideal for delineating involvement of paraglottic and preepiglottic spaces, ligaments, and subtle cartilage invasion that CT might miss. PET scanning detects metabolically active tumor tissue, helping uncover nodal metastases and distant metastases; when combined with CT (PET-CT), you get precise anatomical localization plus functional information. Because laryngeal cancer assessment benefits from evaluating structural detail, soft-tissue involvement, and metabolic disease, using CT, MRI, and PET as complementary tools provides the most comprehensive view. Ultrasound can help assess cervical nodes, but it doesn’t replace the detail provided by CT or MRI for the primary tumor, and plain X-ray offers limited utility for staging.

Assessing how far laryngeal cancer has spread relies on imaging that can map both local tumor extent and distant disease. CT scans provide quick, detailed views of the larynx and neck, especially useful for identifying invasion of cartilage and bone and for evaluating regional lymph nodes. MRI offers superior soft-tissue contrast, making it ideal for delineating involvement of paraglottic and preepiglottic spaces, ligaments, and subtle cartilage invasion that CT might miss. PET scanning detects metabolically active tumor tissue, helping uncover nodal metastases and distant metastases; when combined with CT (PET-CT), you get precise anatomical localization plus functional information.

Because laryngeal cancer assessment benefits from evaluating structural detail, soft-tissue involvement, and metabolic disease, using CT, MRI, and PET as complementary tools provides the most comprehensive view. Ultrasound can help assess cervical nodes, but it doesn’t replace the detail provided by CT or MRI for the primary tumor, and plain X-ray offers limited utility for staging.