title: Multiphasic multidetector computed tomography study of a rare tracheal tumor: granular cell tumor.
abstract: Our aim is to present the case report of a woman affected by tracheal granular cell tumor analysed by multiphasic contrast-enhanced multidetector CT. The tumor presents as polypoid lesion (diameter 13 mm), with smooth and well-defined margins, elevated contrast enhancement in arterial phase, and a modest release of contrast in venous phase. This pattern is quite different from the other tracheal tumours. We have performed a comprehensive review of literature to assess all cases of granular cell tumors of the trachea; only 40 cases are reported. Of these, no one focused on the contrast enhancement aspect, so our work is the first showing a specific pattern in multidetector computed tomography (MDCT) of the tracheal granular cell tumour and may help in differential diagnosis.
authors.affiliation: Department of Radiology, San Luigi Gonzaga University Hospital, University of Torino, Regione Gonzole 10, 10043 Orbassano, Italy.
authors.forename: Tommaso
authors.initials: T
authors.lastname: Guarnieri
authors.affiliation: Department of Radiology, San Luigi Gonzaga University Hospital, University of Torino, Regione Gonzole 10, 10043 Orbassano, Italy.
authors.forename: Luciano
authors.initials: L
authors.lastname: Cardinale
authors.affiliation: Department of Radiology, Maria Vittoria Hospital, Via Cibrario 72, 10144 Torino, Italy.
authors.forename: Gianluca
authors.initials: G
authors.lastname: Macchia
authors.affiliation: Department of Radiology, Maria Vittoria Hospital, Via Cibrario 72, 10144 Torino, Italy.
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Cortese
authors.affiliation: Department of Radiology, San Luigi Gonzaga University Hospital, University of Torino, Regione Gonzole 10, 10043 Orbassano, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Veltri