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The Massachusetts Oral HPV Prevention Taskforce was created to build connections between medical and dental professionals to increase HPV vaccination rates, decrease HPV-related cancer, and educate both providers and patients on oropharyngeal cancers. In this webinar, members of the taskforce educate the dental community with relevant, medically sound information to empower dental professionals to help their patients make informed decisions about oral health and cancer prevention.
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This video segment serves as a short introduction and educational lesson for our MedNet21 webcast on Oropharyngeal Cancer. The CME webcast can be viewed in its entirety at https://ccme.osu.edu/WebCastSearch.aspx. Enjoy this on-line education.


In this video, Dr. Katie Bailey describes the anatomic subsites of the oropharynx and reviews how tumors are staged through four quick example cases.
N.B. The initial version of this video had a few small errors in the staging, so we have corrected them.
0:00 Review of oropharynx anatomy. The oropharynx includes the tonsils (both lingual and palatine), the squamous mucosa of the pharynx, the uvula, and the vallecula. oral cavity includes the lips, teeth, hard and soft palate, gingiva, retromolar trigone, the buccal mucosa, and anterior 2/3 of the tongue. Masticator space. Contains the muscles of mastication, the mandible, branches of the trigeminal nerve, lymph nodes, and minor salivary glands.
0:41 Oropharyngeal cancer staging. Tumor (T) staging is based on the size of the tumor or invasion through adjacent structures. Nodal (N) staging is based on the number, location, and size of nodes, and metastasis (M) staging is based on the presence or absence of distant sites of disease. 1:12 Example case 1. There is a 2.4 cm mass of the right palatine tonsil. There is level 2 and 3 adenopathy. The lymphadenopathy compresses the jugular vein and displaces the adjacent sternocleidomastoid. The size of the tumor makes this a T2 lesion, and the unilateral adenopathy less than 6 cm with multiple nodes makes it N2b. Because metastases can’t be evaluated with this information, it is given an ‘X’ for M staging right now.
1:57 Example case 2. There is a 3.2 cm mass in the tongue base and extending into the vallecula. There is no extension into the adjacent structures or fat. There is a single left sided level 2 lymph node that is somewhat prominent but isn’t definitely abnormal. That makes this a T2N0Mx tumor. If a PET or biopsy later shows that the node is positive, the staging can be changed.
2:42 Example case 3. There is a subtle mass of the right lateral wall of the oropharynx involving the tonsillar pillar and tongue base. This one is quite hard to see. There are cystic necrotic lymph nodes on the right, but none greater than 6 cm. A PET/CT showed no distant metastatic disease. That makes this a T1N2bM0 tumor.
3:51 Example case 4. This patient presented with cervical lymphadenopathy on the left but had no clear primary tumor in the oropharynx. There was no mass of the tongue base or elsewhere. The patient had a lung node suspicious for metastatic disease. A PET/CT showed that there was a primary in the soft palate. The mass was detected only by PET/CT. The final staging for this cancer is T1N2bM1. Thanks for checking out this quick video on oropharyngeal cancer staging.
Be sure to tune back in for additional videos on staging of the other head and neck subsites.
Check out this video and additional content on http://www.learnneuroradiology.com


Over 50,000 Americans will be diagnosed with cancer of the head and neck in 2021, but we now have tools to prevent these cancers for future generations. Watch as Dr. Lidia Schapira explains risk factors, steps you can take to protect yourself, and available treatment options.
0:00 Introduction
0:43 What is oral cancer? How does it develop?
1:37 What are risk factors for oral and oropharyngeal cancer?
3:41 How is oral cancer diagnosed and treated?
Dr. Schapira is a medical oncologist and a professor of medicine at Stanford University.
The information in this video was accurate as of the upload date, 12/22/2021. For information purposes only. Consult your local medical authority or your healthcare practitioner for advice.
This video is a production of the Stanford Center for Health Education team, in collaboration with Stanford Medicine, Stanford Center for Professional Development, and Stanford Medicine Education Technology Team.
At the Stanford Center for Health Education, we believe that expanding access to engaging education has the power to change behaviors, improve health, and ultimately save lives.
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