Benign and malignant sinonasal lesions with intracranial extension: Differentiation with MR imaging

P. M. Som, W. P. Dillon, G. Sze, M. Lidov, H. F. Biller, W. Lawson

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

Most sinonasal lesions that extend into the anterior cranial fossa are malignant tumors. However, benign inflammatory polypoid disease can also rarely be manifested in this manner. Fourteen surgically proved cases of such benign and malignant disease were studied with magnetic resonance (MR) imaging. The appearances of the benign and the malignant lesions were quite different and allowed the seven chronic polypoid lesions to be distinguished from the tumors. The benign lesions had nonhomogenous appearances on MR images due primarily to varying degrees of free-water resorption and protein concentration. The tumors had primarily homogeneous low-to-intermediate signal intensities due to their highly cellular composition.

Original languageEnglish
Pages (from-to)763-766
Number of pages4
JournalRadiology
Volume172
Issue number3
DOIs
StatePublished - 1989

Fingerprint

Dive into the research topics of 'Benign and malignant sinonasal lesions with intracranial extension: Differentiation with MR imaging'. Together they form a unique fingerprint.

Cite this