262790.fig.004a
(a)
262790.fig.004b
(b)
Figure 4: (a) Alveolar process of the maxilla with an intense erosive process in anterior part and loss of bony tissue with exposure of the tooth roots in the right side and of the left central incisor (black arrows). Furthermore, the margins of the piriform aperture are rounded (white arrows). (b) Particular of the nasal cavity. On the bony wall there is presence of pitting (arrows).