PMC3335457_01
Intraoral photograph.
CRIM.DENTISTRY2011-190592.001.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.001.jpg
fig1
A pedunculated, rubbery, nontender, and pinkish mass of gingival-like tissue was seen extending from lower left first premolar to lower left second molar, occupying entire lower left buccal vestibule (Figure 1).
T1-weighted axial image showing well-marginated isointense soft tissue lesion with few hypointense areas within.
CRIM.DENTISTRY2011-190592.002.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.002.jpg
fig2
T1-weighted sequences (Figures 2 and 3) and iso- to hypointense on T2-weighted sequences (Figure 4). Multiple small hypointense areas were seen within the mass on nonenhanced T1-weighted sequences suggestive of calcifications. The mass had caused displacement of zygomaticus major muscle and facial artery, but the fat planes were preserved.
T1-weighted coronal image showing isointense mass occupying left vestibule.
CRIM.DENTISTRY2011-190592.003.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.003.jpg
fig3
T1-weighted sequences (Figures 2 and 3) and iso- to hypointense on T2-weighted sequences (Figure 4). Multiple small hypointense areas were seen within the mass on nonenhanced T1-weighted sequences suggestive of calcifications. The mass had caused displacement of zygomaticus major muscle and facial artery, but the fat planes were preserved.
T2-weighted axial image showing iso- to hyperintense mass.
CRIM.DENTISTRY2011-190592.004.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.004.jpg
fig4
T1-weighted sequences (Figures 2 and 3) and iso- to hypointense on T2-weighted sequences (Figure 4). Multiple small hypointense areas were seen within the mass on nonenhanced T1-weighted sequences suggestive of calcifications. The mass had caused displacement of zygomaticus major muscle and facial artery, but the fat planes were preserved.
Postcontrast T1-weighted axial image showing heterogenous enhancement.
CRIM.DENTISTRY2011-190592.005.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.005.jpg
fig5
After administration of contrast (gadolinium diethylene triamine pentaacetic acid), the lesion showed heterogenous enhancement (Figure 5).
Photomicrograph confirming the diagnosis of peripheral ossifying fibroma.
CRIM.DENTISTRY2011-190592.006.jpg
PMC3335457_01_CRIM.DENTISTRY2011-190592.006.jpg
fig6
Pathological examination confirmed the diagnosis of a peripheral ossifying fibroma (Figure 6).