TY - JOUR
T1 - Value of contrast-enhanced magnetic resonance imaging in differentiation of hemangiomas from lymphangiomas in the oral and maxillofacial region
AU - Yonetsu, Koichi
AU - Nakayama, Eiji
AU - Kawazu, Toshiyuki
AU - Kanda, Shigenobu
AU - Ozeki, Satoru
AU - Shinohara, Masanori
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Objective. The purpose of this study was to investigate the ability of contrast-enhanced magnetic resonance imaging to differentiate hemangioma from lymphangioma in the oral and maxillofacial region. Study design. Contrast-enhanced magnetic resonance imaging was performed in 20 patients (21 masses: 17 hemangiomas and 4 lymphangiomas) through use of either a 0.2-T permanent system or a 0.5-T superconductive system and spin-echo pulse sequences. Results. After intravenous administration of contrast medium, enhancement was observed in all hemangiomas in areas corresponding to those with high signal on T2-weighted images. Unequivocally increased signal was observed in 10 masses, and slightly increased signal was observed in 7 masses. On the other hand, none of the lymphangiomas showed an enhancing mass on contrast-enhanced T1-weighted images. Conclusions. Although contrast-enhanced T1-weighted imaging may not improve delineation of masses in all cases, it can be used to differentiate between deep hemangiomas and lymphangiomas.
AB - Objective. The purpose of this study was to investigate the ability of contrast-enhanced magnetic resonance imaging to differentiate hemangioma from lymphangioma in the oral and maxillofacial region. Study design. Contrast-enhanced magnetic resonance imaging was performed in 20 patients (21 masses: 17 hemangiomas and 4 lymphangiomas) through use of either a 0.2-T permanent system or a 0.5-T superconductive system and spin-echo pulse sequences. Results. After intravenous administration of contrast medium, enhancement was observed in all hemangiomas in areas corresponding to those with high signal on T2-weighted images. Unequivocally increased signal was observed in 10 masses, and slightly increased signal was observed in 7 masses. On the other hand, none of the lymphangiomas showed an enhancing mass on contrast-enhanced T1-weighted images. Conclusions. Although contrast-enhanced T1-weighted imaging may not improve delineation of masses in all cases, it can be used to differentiate between deep hemangiomas and lymphangiomas.
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U2 - 10.1016/S1079-2104(99)70069-7
DO - 10.1016/S1079-2104(99)70069-7
M3 - Article
C2 - 10519762
AN - SCOPUS:0033208713
SN - 1079-2104
VL - 88
SP - 496
EP - 500
JO - Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
JF - Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
IS - 4
ER -