title: Magnetic resonance imaging versus computed tomography and different imaging modalities in evaluation of sinonasal neoplasms diagnosed by histopathology.
abstract: OBJECTIVE
  The study purpose was to detect the value of magnetic resonance imaging (MRI) compared to computed tomography (CT) and different imaging modalities as conventional radiology in evaluation of sinonasal neoplasms diagnosed by Histopathology.
  
  
  METHODS
  Thirty patients (16 males and 14 females) were complaining of symptoms related to sinonasal tract. After thorough clinical and local examination, the patients were subjected to the following: conventional radiography, CT, MRI, and histopathological examination.
  
  
  RESULTS
  The nasal cavity was the most commonly involved site with sinonasal malignancies followed by the maxillary sinuses. The least commonly affected site was the frontal sinuses. Benign sinonasal tumors were present in 14 cases. The most common benign lesion was juvenile nasopharyngeal angiofibroma (6 cases), followed by inverted papilloma (3 cases). While malignant sinonasal tumors were present in 16 cases, squamous cell carcinoma was present in 5 cases, and undifferentiated carcinoma, in 3 cases. Lymphoepithelioma and non-Hodgkin lymphomas were present in 2 cases each, while adenocarcinoma, chondrosarcoma, adenoid cystic carcinoma, and rhabdomyosarcoma were present in 1 case each.
  
  
  CONCLUSIONS
  MRI with its superior soft tissue contrast and multiplanar capability is superior to CT in pretreatment evaluation of primary malignant tumors of sinonasal cavity.
authors.affiliation: Department of Ear, Nose, and Throat, El Minia University, Minia, Egypt.
authors.forename: Mohammed A
authors.initials: MA
authors.lastname: Gomaa
authors.forename: Moustafa S
authors.initials: MS
authors.lastname: Hammad
authors.forename: Abobakr
authors.initials: A
authors.lastname: Abdelmoghny
authors.forename: Ashraf M
authors.initials: AM
authors.lastname: Elsherif
authors.forename: Heba M
authors.initials: HM
authors.lastname: Tawfik
keywords: computed tomography; magnetic resonance imaging; sinonasal tumor