29. Imaging of the head and the neck. Imaging methods, indications and strategy.

From greek.doctor
  • Imaging
    • Modalities
      • CT
        • Inner ear
        • 120 kV
      • MRi
        • Retrocochlear lesions
        • Paresis
        • Schwannoma
        • Tumors
      • X-ray
        • Paranasal sinuses
        • Facial trauma
  • Cholesteatoma
    • Basically an epidermoid cyst in middle ear or mastoid process
    • CT or MRi
    • No contrast necessary (not enhanced by contrast)
  • Carotid space
    • A deep compartment of the head and neck
    • Contains
      • Common and internal carotid arteries
      • Internal jugular vein
      • Deep cervical lymph node chains (lymph node regions II – IV)
      • Vagus nerve
      • Sympathetic plexus
    • Pathologies
      • Aneurysm/dissection of carotid
      • Thrombophlebitis of int. jugular v.
      • Schwannoma
      • Paraganglioma
  • Salivary glands
    • Salivary stones
      • First-line: Ultrasound
    • Salivary gland tumors
      • Most common: Pleuomorphic adenoma
      • Most common malignant: Mucoepidermoid cc
      • First-line: Ultrasound
  • Thyroid gland
    • Ultrasound
    • Scintigraphy