1. Oral and oropharyngeal tumors
C.M. Beil, M. Keberle 
European Journal of Radiology 
Volume 66, Issue 3, Pages (June 2008)
DOI: /j.ejrad
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2. Fig. 1
MRI of a venous malformation. Extension through the mandible and the mylohyoid muscle into the lower lip and the submandibular region (arrows): T2 hyperintense, strong enhancement on post-contrast T1.
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3. Fig. 2
MRI of lymphangioma of the floor of the mouth and left tonsillar region (arrows): T2 hyperintense, slight enhancement on post-contrast T1.
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4. Fig. 3
MRI of a dermoid cyst of the floor of the mouth: (A) after contrast administration no enhancement and (B) T2 hyperintense.
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5. Fig. 4
MRI of lingual thyroid tongue and floor of the mouth (arrows). Irregular rather strong enhancement after contrast administration.
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6. Fig. 5
CT of peritonsillary abscess (arrow). Hypodense lesion with rim enhancement after contrast administration.
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7. Fig. 6
MRI of peritonsillary abscess (arrows): enlargement of left tonsillar and peritonsillar region with T2 hyperintense lesion. Strong enhancement after contrast administration with central hypointense abscess.
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8. Fig. 7
CT of simple ranula (arrows) as well delineated hypodense lesion without contrast enhancement with displacement of the genioglossus and mylohyoid muscle.
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9. Fig. 8
CT of plunging ranula: transversal (A), sagittal (B) and coronal (C) images show well-defined hypodense lesion with hyperdense contrast-enhancing rim.
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10. Fig. 9
CT of plunging ranula (arrows) with displacement of left submandibular gland (*).
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11. Fig. 10
CT of pleomorphic adenoma of the hard palate (arrows): well-circumscribed hypodense formation on the left side of the hard palate (courtesy of Vincent Chong Fook Hin).
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12. Fig. 11
OPG and MRI of hemangioma (arrows) of the right buccal region: T2 hyperintense formation with strong enhancement after contrast administration. Phleboliths visible on the Orthopantomogram (courtesy of Soraya Robinson).
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13. Fig. 12
CT of contrast enhancing squamous cell carcinoma of the lower lip (*). Bilateral lymph node metastases with peripheral enhancement and central hypodense necrosis (arrows).
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14. Fig. 13
CT of squamous cell carcinoma of the floor of the mouth (arrow) with infiltration of the intrinsic muscles. Bilateral lymph node metastases (*).
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15. Fig. 14
CT of squamous cell carcinoma of the retromolar trigonum (arrows): contrast-enhancing formation at the left retromolar trigonum with bone erosion.
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16. Fig. 15
MRI of squamous cell carcinoma of the right edge of the tongue (arrows): T2 moderate hyperintense formation with strong enhancement on post-contrast T1.
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17. Fig. 16
MRI of squamous cell carcinoma of the base of the tongue (arrows): T2 slightly hyperintense formation crossing the midline with inhomogenous enhancement on post-contrast T1.
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18. Fig. 17
MRI of squamous cell carcinoma of the base of the tongue (arrows): T2 hyperintense formation on the left base of the tongue with moderate enhancement on post-contrast T1 images. Central necrotic enlarged lymph nodes (*).
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19. Fig. 18
CT of squamous cell carcinoma of the tongue (arrows): contrast-enhancing mass on the left side of the tongue crossing the midline.
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20. Fig. 19
MRI of squamous cell carcinoma of the dorsal oropharyngeal wall (arrows). Mass shows moderate enhancement on T1-images after contrast administration.
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21. Fig. 20
CT of squamous cell carcinoma of the oropharynx (*): contrast-enhancing mass of the base of the tongue crossing the midline.
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22. Fig. 21
CT of squamous cell carcinoma of the oropharynx: contrast-enhancing mass originating from the right tonsil with extensive deep and perivascular infiltration (arrows).
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23. Fig. 22
CT of adenoid cystic carcinoma of the left sublingual gland (arrows): strong enhancement on post-contrast image (courtesy of Vincent Chong Fook Hin).
European Journal of Radiology  , DOI: ( /j.ejrad )
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