Question 309 · LDEK · Abscesses and phlegmons
This space is bounded superiorly by the mylohyoid muscle; inferiorly and laterally by the skin, superficial layer of the cervical fascia and the platysma muscle; anteriorly and laterally by the lingual surface of the mandible; posteriorly by the hyoid bone and the posterior belly of the digastric muscle; and medially by the anterior belly of the digastric muscle. Purulent process involving this area is most frequently due to infection originating in the mandibular third or second molar. This is a description of which space:
- A. buccal.
- B. submasseteric.
- C. pterygomandibular.
- D. submandibular.
- E. parapharyngeal.
Hint
The key boundary is the mylohyoid above — infection from lower molars whose apices lie below the mylohyoid line ends up here.
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