Figures at a glance

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FIGURE 1

Figure 1:Budding process completely obstructing the right nasal cavity, not bleeding on contact.

FIGURE 2

Figure 2: craniofacial computed tomography (CT) (in coronal and axial section) shows a large mass of straight tissue nasal cavity with triple necrotic and calcic tissue component, slightly enhanced after contrast and it has an endocranial extension (arrow) and in the right maxillary sinus.

FIGURE 3

Figure 3: Craniofacial MRI of the patient coronal slice (a) sagittal slice (b) and axial slice (c): objective a process of the right nasal fossa extending into the endocranial at the right basifrontal level; extending into the nasopharynx, it infiltrates the homolateral sphenoid sinus and the inner wall of the right orbit with lysis of the nasal septum.

FIGURE 4

Figure 4:Endoscopic appearance intraoperatively.

FIGURE 5

Figure 5: Histopathological aspect, bone spans infiltrated by fusocellular proliferation with hemangioperic vascularization (HES x 200).

FIGURE 6

Figure 6:craniofacial CT coronal section performed post-operatively: the presence of minimal pneumocephaly with the completely unobstructed nasal cavity.