Radiotherapy & Nuclear Medicine · NEET PG Preparation Radiology
A patient undergoing fractionated external beam radiotherapy for head and neck squamous cell carcinoma develops acute xerostomia. Which of the follow…
Practice question from Radiotherapy & Nuclear Medicine (NEET PG Preparation Radiology), with the correct answer and a step-by-step solution.
medium · MCQ · Q-EAE739
A patient undergoing fractionated external beam radiotherapy for head and neck squamous cell carcinoma develops acute xerostomia. Which of the following salivary glands is most critical to spare during treatment planning to prevent permanent severe xerostomia?
- A.Sublingual gland
- B.Parotid glandCorrect answer
- C.Submandibular gland
- D.Minor palatal salivary glands
Solution
The parotid glands contribute the majority of stimulated serous saliva and are the primary structures whose irradiation leads to long-term, debilitating xerostomia. Intensity-modulated radiotherapy (IMRT) is frequently utilized to spare the parotid glands in head and neck cancers.
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