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Parapharyngeal Space Infection — NDEB AFK MCQ

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HardOral SurgeryParapharyngeal Space InfectionNDEB AFK

A patient develops trismus and dysphagia 3 days after extraction of a mandibular third molar. Intraoral examination reveals swelling of the soft palate with the uvula deviated to the contralateral side. Which fascial space is most likely involved?

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Correct answer: D — Lateral pharyngeal (parapharyngeal) space

Soft palate swelling with uvula deviation indicates lateral pharyngeal (parapharyngeal) space involvement. This is a dangerous infection that can spread to the retropharyngeal space and mediastinum or compromise the airway. Dysphagia and trismus are cardinal signs. Urgent referral for CT imaging, IV antibiotics, and possible surgical drainage is required.

Reference: Hupp – Contemporary Oral and Maxillofacial Surgery, 7th ed., 2019