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Το περιεχόμενο παρέχεται από το Daniel J. Kowal, MD, Daniel J. Kowal, and MD. Όλο το περιεχόμενο podcast, συμπεριλαμβανομένων των επεισοδίων, των γραφικών και των περιγραφών podcast, μεταφορτώνεται και παρέχεται απευθείας από τον Daniel J. Kowal, MD, Daniel J. Kowal, and MD ή τον συνεργάτη της πλατφόρμας podcast. Εάν πιστεύετε ότι κάποιος χρησιμοποιεί το έργο σας που προστατεύεται από πνευματικά δικαιώματα χωρίς την άδειά σας, μπορείτε να ακολουθήσετε τη διαδικασία που περιγράφεται εδώ https://el.player.fm/legal.
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Case Review: Ultrasound of Pleomorphic Adenoma of the Parotid Gland

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When? This feed was archived on April 26, 2023 20:55 (11M ago). Last successful fetch was on March 21, 2023 15:14 (1y ago)

Why? Ανενεργό feed status. Οι διακομιστές μας δεν ήταν σε θέση να ανακτήσουν ένα έγκυρο podcast feed για μια παρατεταμένη περίοδο.

What now? You might be able to find a more up-to-date version using the search function. This series will no longer be checked for updates. If you believe this to be in error, please check if the publisher's feed link below is valid and contact support to request the feed be restored or if you have any other concerns about this.

Manage episode 357539939 series 1282250
Το περιεχόμενο παρέχεται από το Daniel J. Kowal, MD, Daniel J. Kowal, and MD. Όλο το περιεχόμενο podcast, συμπεριλαμβανομένων των επεισοδίων, των γραφικών και των περιγραφών podcast, μεταφορτώνεται και παρέχεται απευθείας από τον Daniel J. Kowal, MD, Daniel J. Kowal, and MD ή τον συνεργάτη της πλατφόρμας podcast. Εάν πιστεύετε ότι κάποιος χρησιμοποιεί το έργο σας που προστατεύεται από πνευματικά δικαιώματα χωρίς την άδειά σας, μπορείτε να ακολουθήσετε τη διαδικασία που περιγράφεται εδώ https://el.player.fm/legal.

In this radiology lecture, we review the ultrasound appearance of pleomorphic adenoma of the parotid gland!

Key teaching points include:

  • Pleomorphic adenoma AKA benign mixed tumor.
  • Most common salivary gland tumor, most common benign salivary gland tumor, and most common in the parotid gland.
  • Most common in patients aged 40-50, slightly more common in females.
  • For salivary gland masses in adults, the larger the gland, the more likely the tumor is benign: Parotid gland: 80%, submandibular gland: 50%, sublingual glands: 20%.
  • Parotid Gland 80% Rule: 80% of all salivary tumors are in the parotid, 80% of benign parotid gland tumors are pleomorphic adenomas, 80% of pleomorphic adenomas occur in the parotid gland, 80% of pleomorphic adenomas occur in the superficial lobe, and 80% of untreated pleomorphic adenomas stay benign, but 20% can undergo malignant degeneration.
  • On ultrasound, appears as a well-defined mass with lobulated borders, hypoechoic with posterior acoustic enhancement, and with homogeneity of internal echoes common.
  • When large, may have cystic degeneration and internal heterogeneity mimicking malignancy.
  • Vascularity is variable.
  • Describe lesion location, image-guided biopsy planning, evaluate for cervical lymphadenopathy.
  • Superficial and deep parotid lobes divided by facial nerve traveling through gland. Nerve not readily seen, but passes just superficial to adjacent retromandibular vein, which can be seen = Use as a landmark. Inferior to the retromandibular vein, may see branches of the external carotid artery.
  • Treatment is typically excision due to risk of malignant degeneration carcinoma ex pleomorphic adenoma if not completely excised.
  • DDx includes Warthin tumor: Second most common benign parotid tumor, bilateral in 20%, often exhibit cystic components, most common in elderly.
  • Malignant parotid tumors are also in the DDx and may appear with ill-defined margins, irregular shape, heterogeneous internal architecture, extraglandular extension, and adjacent lymphadenopathy.
  • Mucoepidermoid carcinoma: Most common salivary gland malignancy, most common in parotid gland.
  • Adenoid cystic carcinoma: Second most common parotid malignancy, but most common submandibular and minor salivary gland malignancy.
  • Higher risk of perineural spread: Patients may present with facial pain and facial nerve paralysis.

To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/rs85-prestige-ultrasound-system-4

Click the YouTube Community tab or follow on social media for bonus teaching material posted throughout the week!

Spotify: https://bit.ly/spotify-rhq
Instagram: https://www.instagram.com/radiologistHQ/
Facebook: https://www.facebook.com/radiologistHeadQuarters/
Twitter: https://twitter.com/radiologistHQ
Reddit: https://www.reddit.com/user/radiologistHQ/

The post Case Review: Ultrasound of Pleomorphic Adenoma of the Parotid Gland appeared first on Radiologist Headquarters.

  continue reading

81 επεισόδια

Artwork
iconΜοίρασέ το
 

Αρχειοθετημένη σειρά ("Ανενεργό feed" status)

When? This feed was archived on April 26, 2023 20:55 (11M ago). Last successful fetch was on March 21, 2023 15:14 (1y ago)

Why? Ανενεργό feed status. Οι διακομιστές μας δεν ήταν σε θέση να ανακτήσουν ένα έγκυρο podcast feed για μια παρατεταμένη περίοδο.

What now? You might be able to find a more up-to-date version using the search function. This series will no longer be checked for updates. If you believe this to be in error, please check if the publisher's feed link below is valid and contact support to request the feed be restored or if you have any other concerns about this.

Manage episode 357539939 series 1282250
Το περιεχόμενο παρέχεται από το Daniel J. Kowal, MD, Daniel J. Kowal, and MD. Όλο το περιεχόμενο podcast, συμπεριλαμβανομένων των επεισοδίων, των γραφικών και των περιγραφών podcast, μεταφορτώνεται και παρέχεται απευθείας από τον Daniel J. Kowal, MD, Daniel J. Kowal, and MD ή τον συνεργάτη της πλατφόρμας podcast. Εάν πιστεύετε ότι κάποιος χρησιμοποιεί το έργο σας που προστατεύεται από πνευματικά δικαιώματα χωρίς την άδειά σας, μπορείτε να ακολουθήσετε τη διαδικασία που περιγράφεται εδώ https://el.player.fm/legal.

In this radiology lecture, we review the ultrasound appearance of pleomorphic adenoma of the parotid gland!

Key teaching points include:

  • Pleomorphic adenoma AKA benign mixed tumor.
  • Most common salivary gland tumor, most common benign salivary gland tumor, and most common in the parotid gland.
  • Most common in patients aged 40-50, slightly more common in females.
  • For salivary gland masses in adults, the larger the gland, the more likely the tumor is benign: Parotid gland: 80%, submandibular gland: 50%, sublingual glands: 20%.
  • Parotid Gland 80% Rule: 80% of all salivary tumors are in the parotid, 80% of benign parotid gland tumors are pleomorphic adenomas, 80% of pleomorphic adenomas occur in the parotid gland, 80% of pleomorphic adenomas occur in the superficial lobe, and 80% of untreated pleomorphic adenomas stay benign, but 20% can undergo malignant degeneration.
  • On ultrasound, appears as a well-defined mass with lobulated borders, hypoechoic with posterior acoustic enhancement, and with homogeneity of internal echoes common.
  • When large, may have cystic degeneration and internal heterogeneity mimicking malignancy.
  • Vascularity is variable.
  • Describe lesion location, image-guided biopsy planning, evaluate for cervical lymphadenopathy.
  • Superficial and deep parotid lobes divided by facial nerve traveling through gland. Nerve not readily seen, but passes just superficial to adjacent retromandibular vein, which can be seen = Use as a landmark. Inferior to the retromandibular vein, may see branches of the external carotid artery.
  • Treatment is typically excision due to risk of malignant degeneration carcinoma ex pleomorphic adenoma if not completely excised.
  • DDx includes Warthin tumor: Second most common benign parotid tumor, bilateral in 20%, often exhibit cystic components, most common in elderly.
  • Malignant parotid tumors are also in the DDx and may appear with ill-defined margins, irregular shape, heterogeneous internal architecture, extraglandular extension, and adjacent lymphadenopathy.
  • Mucoepidermoid carcinoma: Most common salivary gland malignancy, most common in parotid gland.
  • Adenoid cystic carcinoma: Second most common parotid malignancy, but most common submandibular and minor salivary gland malignancy.
  • Higher risk of perineural spread: Patients may present with facial pain and facial nerve paralysis.

To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/rs85-prestige-ultrasound-system-4

Click the YouTube Community tab or follow on social media for bonus teaching material posted throughout the week!

Spotify: https://bit.ly/spotify-rhq
Instagram: https://www.instagram.com/radiologistHQ/
Facebook: https://www.facebook.com/radiologistHeadQuarters/
Twitter: https://twitter.com/radiologistHQ
Reddit: https://www.reddit.com/user/radiologistHQ/

The post Case Review: Ultrasound of Pleomorphic Adenoma of the Parotid Gland appeared first on Radiologist Headquarters.

  continue reading

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