A 55-year-old female has recurrent painful swelling of the right submandibular gland during meals. The physician plans to perform sialography. Which of the following is a contraindication to sialography?
A) Iodine allergy is an absolute contraindication to sialography because contrast media contains iodine | B) Presence of acute infection in the gland is an absolute contraindication because injecting contrast during acute infection may worsen the condition and spread infection | C) Visible stone at duct opening is not an absolute contraindication; it may even be an indication for imaging to identify other stones | D) Chronic swelling is not a contraindication; it may be an indication for imaging | E) Previous history of sialography is not a contraindication | Radiology consultation to assess alternatives such as ultrasound or MRI | Treat acute infection first before performing imaging | Consultant Pearl: In acute infection, ultrasound or MRI is preferred over contrast sialography | Sources: Salivary Gland Disorders -Myers new.pdf — p. 14