molar tooth sign

Home » Classic Medicine » Radiology – Imaging » molar tooth sign
molar tooth sign2016-10-22T14:50:31+00:00

molar tooth sign

molar tooth image from New Medical Terms

molar tooth

IMAGING, BLADDER

Definition A descriptive term for the appearance of perivesicular contrast on contrast-enhanced CT in a patient with extraperitoneal rupture of the urinary bladder

Reference Radiology 2003; 229:671-672  doi: 10.1148/radiol.2293020764

molar tooth sign brain image from

molar tooth sign, more prominent on left slice

IMAGING, BRAIN

Definition A descriptive term for a finding on transverse CT and MRI images acquired at the midbrain in patients with Joubert syndrome. The “tooth” is a characteristic enlarged and horizontally directed tubular structure on each side of the midline emerging from the midbrain, that is due to an absent decussation of the superior cerebellar peduncular fibre tracts in affected patients, which has been likened to a molar tooth

Joubert syndromes, OMIM localiser and defective gene, if known (reproduced with permission from Segen, JC, modernmedicaldictionary.com database)

• Joubert syndrome 1 (OMIM:213300) INPP5E

• Joubert syndrome 2 (OMIM:608091) TMEM216

• Joubert syndrome 3 (OMIM:608629) AHI1

• Joubert syndrome 4 (OMIM:609583) NPHP1

• Joubert syndrome 5 (OMIM:610188) CEP290

• Joubert syndrome 6 (OMIM:610688) TMEM67

• Joubert syndrome 7 (OMIM:611560) RPGRIP1L

• Joubert syndrome 8 (OMIM:612291) ARL13B

• Joubert syndrome 9 (OMIM:612285) CC2D2A

Joubert syndrome 9/15 digenic is included in this OMIM entry

• Joubert syndrome 10 (OMIM:300804) OFD1

• Joubert syndrome 11 (OMIM:613820) TTC21B*

*This is the same OMIM number as nephronophthisis 12, which is caused by homozygous or compound heterozygous mutation of the TTC21B gene . A heterozygous mutation in the TTC21B gene causes Joubert syndrome 11.

• Joubert syndrome 12 (OMIM:200990) KIF7*

*This is the same OMIM number as acrocallosal syndrome; both are caused by homozygous mutation of the KIF7 gene

• Joubert syndrome 13 (OMIM:614173) TECT1

• Joubert syndrome 14 (OMIM:614424) TMEM237

• Joubert syndrome 15 (OMIM:614464) CEP41

Joubert syndrome 9/15 digenic is included in this OMIM entry

• Joubert syndrome 16 (OMIM:614465) TMEM138

• Joubert syndrome 17 (OMIM:614615) C5orf42

• Joubert syndrome 18 (OMIM:614815) TCTN3

• Joubert syndrome 19 (OMIM:614844) ZNF423*

*This is the same OMIM number as nephronophthisis 14, which is caused by homozygous in the ZNF423 gene. A heterozygous mutation in the ZNF423 gene causes Joubert syndrome 19

• Joubert syndrome 20 (OMIM:614970) TMEM231

• Joubert syndrome 21 (OMIM:615636) CSPP1

• ? Joubert syndrome 22 (OMIM:615665) PDE6D

• Joubert syndrome 23 (OMIM:616490) KIAA0586

Leave A Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.