RT Journal Article
SR Electronic
T1 CT Features of Lobular Capillary Hemangioma of the Nasal Cavity
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 749
OP 754
DO 10.3174/ajnr.A1908
VO 31
IS 4
A1 Lee, D.G.
A1 Lee, S.K.
A1 Chang, H.W.
A1 Kim, J.Y.
A1 Lee, H.J.
A1 Lee, S.M.
A1 Kwon, J.H.
A1 Woo, S.
YR 2010
UL http://www.ajnr.org/content/31/4/749.abstract
AB BACKGROUND AND PURPOSE: Lobular capillary hemangioma is a benign capillary proliferation of unknown etiology. To our knowledge, no comprehensive review of imaging findings of LCHNC has been presented. Thus, we investigated characteristic CT features of LCHNC. MATERIALS AND METHODS: This retrospective study included 6 patients (2 men and 4 women; age range, 30–65 years; mean age, 49.2 years) with histologically proved LCHNC. We evaluated the size, site of origin, attenuation on NECT, degree and pattern of enhancement, and bony changes. RESULTS: The LCHNC lesion was 13.0–45.0 mm (average, 25.0 mm) in diameter. These lesions arose from the inferior turbinate in 5 (83.3%) patients and the anterior nasal septum in 1 (16.7%). Compared with the masticator muscles, the LCHNC lesion was hypoattenuating in 2 (33.3%) and isoattenuating on NECT in 4 (66.7%) patients. In 5 (83.3%) patients, the LCHNC lesion consisted of 2 distinct areas on CECT: a lobular intensely enhancing mass and an iso- or hypoattenuating cap of variable thickness around the intensely enhancing mass. Bony changes included erosion in 3 (50.0%) and displacement in 2 (33.3%) patients. CONCLUSIONS: CT features of LCHNC consist of an intensely enhancing mass and an iso- or hypoattenuating cap on CECT. The inferior turbinate seems to be a common site of origin, and bony changes are not uncommon features of LCHNC. CT is useful not only in identifying the site of origin and assessing the extent but also in suggesting the nature of LCHNC. CEcontrast enhancementCECTcontrast-enhanced CTFSEfast spin-echoGdgadoliniumHypohypoattenuatingIsoisoattenuatingITinferior turbinateLCHNClobular capillary hemangioma of the nasal cavityMSmedial wall of maxillary sinusMTmiddle turbinateNECTnonenhanced CTNMnot mentionedNSnasal septumSEspin-echoSIsignal intensityT1WIT1-weighted imageT2WIT2-weighted image