PMC7522574_01
Cone-beam computerized tomography showing a peri-apical cyst on the upper-right second molar. A. Coronal section. B. Sagittal section.
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This confirmation was obtained by cone-beam computerized tomography, which revealed a lesion at the level where the proximal vestibular root curved to its last apical third (Fig. 1).
Immediately after anesthesia, two intra-oral hematomas of the right anterior (1) and posterior cheek (2) where the retractor was positioned, and a peri-apical bruising at the injection site (3).
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A 1 cm-diameter peri-apical bruise also developed quickly at the injection site (Fig. 2).
At 24 h, persistence of medium-sized hematoma of the inside right posterior cheek and right soft palate (A). Appearance of spontaneous and painful right temporal erythematous skin lesion (B).
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While the haematoma on the inner right-anterior cheek and the peri-apical bruising had disappeared, the right-posterior cheek and soft-palate haematomas remained (Fig. 3).
The haematoma on the inner right-posterior cheek had almost disappeared at postoperative day 14 (A) and was unchanged at 21 days (B). Lateralization of the right soft-palate haematoma was observed at postoperative day 14 (A) and its expansion to the anterior and posterior tonsillar pillar was noted at postoperative day 21 (B).
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The right-posterior cheek haematoma had almost disappeared but lateralization of the right soft-palate haematoma was observed (Fig. 4A). The right-posterior cheek haematoma was unchanged but the right soft-palate haematoma had expanded towards the anterior and posterior tonsillar pillars (Fig. 4B).
On postoperative day 21, the patient also had a left cervico-thoracic ecchymosis that was resembled a bead necklace.
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A remarkable left cervico-thoracic ecchymosis that was resembled a bead necklace was also observed (Fig. 5).