Salivary Gland Imaging: Introduction to Parotid Gland
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Questions and Answers

What is the largest salivary gland in the human body?

  • Parotid gland (correct)
  • Minor glands
  • Submandibular gland
  • Sublingual gland

    • Which structure runs through the parotid gland?

  • Branch of vagus nerve
  • Branch of facial nerve (correct)
  • Branch of trigeminal nerve
  • Branch of hypoglossal nerve

    • Where does Stensen's duct open in the oral cavity?

  • Opposite the first lower molar tooth
  • Opposite the first upper molar tooth
  • Opposite the second lower molar tooth
  • Opposite the second upper molar tooth (correct)

    • Which gland drains through Warthon's duct?

    <p>Submandibular gland</p> Signup and view all the answers

    What is the anatomical relationship of the lingual nerve with respect to the parotid gland?

    <p>It passes through the parotid gland</p> Signup and view all the answers

    What divides into the maxillary and superficial temporal artery within the parotid gland?

    <p>External carotid artery</p> Signup and view all the answers

    Which vein runs through the parotid gland?

    <p>Posterior facial vein</p> Signup and view all the answers

    How many lobes does Stensen's duct have?

    <p>Two</p> Signup and view all the answers

    Which of these nerves is not in anatomical relationship with the parotid gland?

    <p>Vagus nerve</p> Signup and view all the answers

    What is the composition of the parotid gland in terms of adipose and glandular tissues?

    <p>Equal proportions of adipose and glandular tissues</p> Signup and view all the answers

    Which structure opens into the anterior floor of the mouth?

    <p>Warthon’s duct</p> Signup and view all the answers

    What is significant about the appearance of the parotid gland on computed tomography/magnetic resonance imaging (CT/MR) images?

    <p>It appears nearly isodense/isointense to fat tissue</p> Signup and view all the answers

    Which salivary gland is the smallest major salivary gland?

    <p>Sublingual gland</p> Signup and view all the answers

    Which gland opens via multiple ducts (ducts of Rivinus) directly into the floor of the mouth along sublingual papillae and folds?

    <p>Sublingual gland</p> Signup and view all the answers

    Which imaging technique is considered the gold standard for studying the ductal morphology of the salivary glands?

    <p>Sialography</p> Signup and view all the answers

    Which imaging method is quick, noninvasive, and helps in differentiating cystic from solid lesions in the parotid and submandibular glands?

    <p>High-resolution ultrasonography</p> Signup and view all the answers

    Which imaging study has an upper hand over CT in demonstrating the extent of lesion and their perineural/meningeal spread?

    <p>Magnetic resonance imaging (MRI)</p> Signup and view all the answers

    Which condition is characterized by inflammation and enlargement of one or more of the salivary glands?

    <p>Sialadenitis</p> Signup and view all the answers

    Which imaging technique is useful in detecting ductal calculi, calcifications, and adjacent osseous lesions in the salivary glands?

    <p>Plain radiography</p> Signup and view all the answers

    What is the main indication for using sialography in imaging the salivary glands?

    <p>Studying the ductal morphology</p> Signup and view all the answers

    'Operator dependent, can detect small stones (>2mm), inexpensive, non-invasive' - Which imaging method does this statement describe?

    <p>High-resolution ultrasonography</p> Signup and view all the answers

    'Contrast-enhanced axial CT image shows hypodense, enlarged right submandibular gland with calculus' - Which condition is most likely depicted in this image?

    <p>Sialolithiasis</p> Signup and view all the answers

    'Non-contrast T2W axial & coronal images showing parotid and submandibular glands' - Which imaging technique typically uses T2-weighted images?

    <p>Magnetic resonance imaging (MRI)</p> Signup and view all the answers

    'It refers to the evaluation of the ductal system of the salivary glands and is considered the gold standard technique for studying the ductal morphology' – Which imaging technique is being referred to in this statement?

    <p>Sialography</p> Signup and view all the answers

    The parotid gland is the smallest major salivary gland.

    <p>False</p> Signup and view all the answers

    Stensen’s duct opens opposite the second upper molar tooth.

    <p>True</p> Signup and view all the answers

    Warthon’s duct drains the sublingual gland.

    <p>False</p> Signup and view all the answers

    The hypoglossal nerve is in anatomical relationship with the parotid gland.

    <p>True</p> Signup and view all the answers

    Sialography is mainly used to evaluate the ductal system of the salivary glands.

    <p>True</p> Signup and view all the answers

    Stensen's duct has two lobes, superficial, and deep.

    <p>False</p> Signup and view all the answers

    The lingual nerve is not in anatomical relationship with the parotid gland.

    <p>False</p> Signup and view all the answers

    The terminal branch of the external carotid artery divides into maxillary and superficial temporal artery within the parotid gland.

    <p>True</p> Signup and view all the answers

    The composition of the parotid gland is nearly isodense/isointense to fat on CT/MR images.

    <p>True</p> Signup and view all the answers

    The parotid gland is composed of adipose and glandular tissues in nearly equal proportions.

    <p>True</p> Signup and view all the answers

    Stensen’s duct is 4 cm long.

    <p>False</p> Signup and view all the answers

    The parotid gland is drained through Warthon’s duct.

    <p>False</p> Signup and view all the answers

    The submandibular gland is the largest salivary gland in the human body.

    <p>False</p> Signup and view all the answers

    The sublingual gland opens via multiple ducts known as ducts of Rivinus directly into the floor of the mouth.

    <p>True</p> Signup and view all the answers

    Plain radiography is useful in detecting ductal calculi, calcifications, and adjacent osseous lesions in the salivary glands.

    <p>True</p> Signup and view all the answers

    High-resolution ultrasonography (HRUS) is not operator dependent and can detect small stones (>2mm) in the salivary glands.

    <p>False</p> Signup and view all the answers

    CT has an upper hand over MRI in demonstrating the osseous lesions/extension and calcification/calculus in the salivary glands.

    <p>True</p> Signup and view all the answers

    Sialolithiasis is characterized by inflammation and enlargement of one or more of the salivary glands.

    <p>False</p> Signup and view all the answers

    Sialography is commonly used for sublingual imaging due to the presence of numerous small ducts opening directly into the floor of the mouth.

    <p>False</p> Signup and view all the answers

    Radionuclide Imaging is useful preoperatively to determine if the salivary gland is functional.

    <p>True</p> Signup and view all the answers

    Inflammatory diseases of salivary glands include sialadenitis which is a condition characterized by inflammation and enlargement of one or more of the salivary glands.

    <p>True</p> Signup and view all the answers

    The ducts of the sublingual glands are called Wharton's ducts.

    <p>False</p> Signup and view all the answers

    The lingual nerve separates the sublingual gland from the medial genioglossus muscle.

    <p>True</p> Signup and view all the answers

    Sialography is considered the gold standard technique for studying the ductal morphology of all major salivary glands.

    <p>False</p> Signup and view all the answers

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