J Korean Radiol Soc.  1999 Jun;40(6):1057-1061. 10.3348/jkrs.1999.40.6.1057.

CT Findings of the Angiomatous Polyp in the Nasal Cavity and Paranasal Sinus

• Jang YS
• Youm DH
• Lee MS
• Kang IG
• Lee JH
• Sung KJ
• Cho MY
• Yang SW

• KMID: 2200927
• DOI: http://doi.org/10.3348/jkrs.1999.40.6.1057

Abstract

PURPOSE: To assess the characteristic CT findings of the angiomatous polyp.
MATERIALS AND METHODS
Fivecases of pathologically-proven angiomatous polyp were retrospectively evaluated. All underwent CT scanning, butin only four cases were postcontrast CT scans obtained. In analysing CT findings we focused on adjacent bonychange, and the extent and enhancement pattern of the mass.
RESULTS
All but one case involved the maxillarysinus, showing thickening of the posterolateral wall and erosion or destruction of the medial wall. As forinvolvement of the anterior wall of this sinus, bony destruction was seen in one case, and thickening in three. Infour cases the tumor involved the maxillary sinus and nasal cavity, and two cases showed nasopharyngeal extension.No case involved the pterygopalatine fossa, however. On contrast enhanced CT scans(n=4), all cases showedenhancement as strong as blood vessels, and a multiple focal punctate or tubular pattern.
CONCLUSION
Angiomatouspolyp tends to show bone thickening rather than bone destruction, not to involve the pterygopalatine fossa, and toreveal a strong punctate or tubular enhancement pattern. These findings may be helpful in the differentialdiagnosis of angiomatous polyp from other tumors such as maxillary cancer, angiofibroma and nasal polyp

Keyword

Nose, CT; Nose, neoplasms; Paranasal sinuses, CT; Paranasal sinuses, neoplasms

MeSH Terms

Angiofibroma
Blood Vessels
Maxillary Sinus
Nasal Cavity*
Nasal Polyps
Polyps*
Pterygopalatine Fossa
Retrospective Studies
Tomography, X-Ray Computed