Fig. 5
From: Odontogenic keratocyst: imaging features of a benign lesion with an aggressive behaviour
Maxillary OKC. Panoramic radiograph (a) shows a large radiolucency with a well-defined and corticated rim in the maxilla (white arrows). Axial multidetector computed tomography (MDCT) images with bone window (b) and soft tissue window (c) clearly demonstrate the hydraulic expansion of the maxillary alveolar bone (black arrows) with thinning (wavy arrows) and perforation (curved arrows) of the buccal cortex. Posterior bowing of the floor of the maxillary sinuses (arrowheads) and inflammatory material within the left maxillary sinus (asterisks) are also shown