02 May 2021
: Case report 
Bilateral Sinonasal Inverted Papilloma: Report of an Uncommon Case Involving Sinuses of the Face and Orbital Cavity
Rare disease
Ana Márcia Viana Wanzeler1ABD, Antonia Taiane Lopes de Moraes1DEF, Dimitra Castelo Branco1ABD, José Thiers Carneiro Júnior1BEG, Bruno Thiago Cruz e Silva1ABC, Victor Angelo Martins Montalli
2CD, Sérgio de Melo Alves Júnior1CDE, João de Jesus Viana Pinheiro1CDE*
DOI: 10.12659/AJCR.929910
Am J Case Rep 2021; 22:e929910
Figure 2. Initial radiographic examinations. CT (axial cross-section). (A) Soft tissue window shows a discreet extension of the lesion to the superficial tissues in the medium bottom from the right orbit. (B) Bone window shows erosion of the bone structure and presence of a continuous solution in the walls of the maxillary sinus, ethmoidal intercellular septum, sphenoidal sinus wall and frontal sinus, notably, in the medium and top walls from the right orbit. (C) CT from sagittal and frontal cross-section: soft tissue window shows extension of the lesion to the paranasal sinuses, the nasal cavity bilaterally, and involvement of the right orbit cavity. (D) Volumetric reconstruction illustrating the tumor extension.