title: Rare infraglottic lesions in magnetic resonance imaging.
abstract: BACKGROUND
  Primary pathological laryngeal lesions occur rarely in infraglottic space. Modern possibilities of diagnostic imaging of infraglottic space include computed tomography (CT) and magnetic resonance (MR). Diagnostic imaging was performed in potential lesions in this area: inflammatory process - cicatrical pemphigoid, benign neoplastic process - chondroma, malignant neoplastic - squamous cell carcinoma. The aim of the paper is to present clinical and radiographical characteristics of selected lesions located in infraglottic space in MRI examination.
  
  
  METHODS
  Three patients examined at the Department of Radiology and Diagnostic Imaging of University Hospital No. 1 in Lodz (SPZOZ USK nr 1) from 2010-2011 with a pathological mass in infraglottic space. Standard imaging protocol for MRI of the neck was used in all patients: field of 1.5 T, slice thickness 3 mm, the distance between the scans 10-20%, FOV - 3 mm, sequences: T1 (TR/TE 455/9, 7 ms, T2 (TR/TE 5300/67 ms), T1 + Gd-DTPA (contrast agent Gd-DTPA at 0.2 mmol/kg).
  
  
  CONCLUSIONS
  1. It is possible to determine characteristic signal pattern for rare lesions of the infraglottic space in MRI. 2. MRI is a valuable complementary modality for the diagnostics and differentiation of lesions in infraglottic space, the evaluation of their advancement and treatment planning.
authors.affiliation: Department of Radiology - Diagnostic Imaging, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Nina
authors.initials: N
authors.lastname: Błasiak-Kołacińska
authors.affiliation: Department of Otolaryngology and Oncological Laryngology, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Wioletta
authors.initials: W
authors.lastname: Pietruszewska
authors.affiliation: Department of Radiology - Diagnostic Imaging, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Grzelak
authors.affiliation: Department of Radiology - Diagnostic Imaging, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Raźniewski
authors.affiliation: Department of Radiology - Diagnostic Imaging, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Ludomir
authors.initials: L
authors.lastname: Stefańczyk
authors.affiliation: Department of Radiology - Diagnostic Imaging, Medical University of Łódź, N. Barlicki University Hospital No. 1, Łódź, Poland.
authors.forename: Agata
authors.initials: A
authors.lastname: Majos
keywords: Benign Mucous Membrane; Carcinoma; Chondroma; Magnetic Resonance Imaging; Pemphigoid; Squamous Cell