Page 68 - Revista Portuguesa - SPORL - Vol 62. Nº1

Figure 3
CT and MRI studies with and without contrast in a patient with an IP with intraorbItal extension and
soft tissues of the nasofacial region. Coronal and axial sinus CT scan (A) (B) showing a bilateral sinus
opacity, with erosion of the right orbital wall (white arrows) with lateral and anterior displacement of
the intraorbital content and subcutaneous cellular tissue in the nasofacial region (red arrows). Coronal
and axial images on MRI in T1-weighted (C) shows a hypointense mass occupying the right nasal cavity,
middle meatus and ethmoid sinus. Axial projection in T2-weighted (D), shows that the mass mainly has
a high-intensity signal, Both images of MRI notably demonstrates a pattern alternating lines of high (red
asterisk) and low signal intensity (white arrows) inside the mass, referred to as convoluted cerebriform
pattern.

Review of previously resected specimens for a correct diagnosis of SP through the diagnosis
this group of patients showed a false negative in the studies performed. The levels of predictive
rate of 24%. In 9% of recurrent cases there assessment, significance and statistical
were no reports or material from the previous agreement found were optimal in all patients
histopathologic study. The level of consistency with SPs with endoscopically identified polypoid
of accurate histopathologic reports in cases lesion findings, revealing good results for each
of recurrent disease was 67%. Following the of the imaging findings evaluated. The degree
histopathological confirmation of the SPs, the of diagnostic accuracy of each of the findings
different endoscopic and imaging findings identified by endoscopy and imaging in patients
were summarized, tabulated, and correlated to with SPs, based on the levels of sensitivity and
calculate and analyze the levels of prediction, positive predictive values recorded, allowed for
reliability, and statistical agreement and to an ideal and strong correlation, with an overall
measure the degree of confidence in obtaining mean average of 88%.

68 Revista Portuguesa de Otorrinolaringologia - Cirurgia de Cabeça e Pescoço