A 15-year-old has a painless, soft, bluish, fluctuant swelling on the lower labial mucosa that has enlarged and shrunk several times since they bit the lip. What is the most likely diagnosis?

  • Correct answer

    Mucocele (mucus extravasation phenomenon)

  • Ranula

  • Hemangioma

  • Lipoma

This question is one of 15 in AFK practice: Oral medicine, pathology and radiology. Test yourself on all of them.

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Explanations

  • Mucoceles result from trauma to a minor salivary gland duct with spillage of mucin into the tissue, and the lower lip is the most common site. A ranula is the same type of lesion in the floor of the mouth.

    Source: Neville et al., Oral and Maxillofacial Pathology — oneguy

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