Role of 3D Multidetector Computed Tomography in diagnosis of Elongated styloid Process

This poster is published under an open license. Please read the disclaimer for further details.

Congress:

ECR 2016

Poster Number:

C-0171

Type:

Educational Exhibit

Keywords:

Head and neck, Computer applications, Ear / Nose / Throat, CT, Image manipulation / Reconstruction, Computer Applications-3D, Diagnostic procedure, Connective tissue disorders, Education and training

Authors:

S. Kalmath¹, P. DEBBARMA², A. DE³, A. G. Biswas⁴; ¹Agartala, Tripura/IN, ²AGARTALA/IN, ³799001, Tr/IN, ⁴799006, TR/IN

DOI:

10.1594/ecr2016/C-0171

DOI-Link:

https://dx.doi.org/10.1594/ecr2016/C-0171

Fig. 1: Anatomy and attachments of the styloid process.

Fig. 2: Langlais et al classification of Eagle’s syndrome

Fig. 3: OPG, styloid process in this case was 8.2 cm on the right side and 8.5 cm on...

Fig. 4: Ossified left stylohyoid ligament seen on the plain frontal skull radiograph.

Learning objectives

To recognise the normal anatomy of Styloid process To Define Eagle’s syndrome To Identify the clinical features of Elongated styloid process To review the radiological modalities for diagnosis To Identify and classify the different types of elongated styloid process on Multi Detector Computed Tomography

Background

The styloid process is situated anterior to the stylomastoid foramen, and develops from the second branchial arch, specifically the proximal Reichert’s cartilage. It is a cylindrical bony projection, and has a pointed end of variable length projecting downward and forward from the inferior surface of the petrous part of the Temporal Bone, and attaches to the lesser cornu of the hyoid bone via the styloid - hyoid ligament. Styloglosssus, stylopharyngeus and stylohyoid muscles and the stylomandibular ligament attach to the styloid process. (Fig 1 )...

Findings and procedure details

Helical scans (140 kV, 220 mAs/section, 0.315 pitch, 0.67-mm thickness, 0.33-mm increment, 16 × 0.625 collimation, the orbitomeatal line as a scanning baseline), were performed on all cases using a Philips Brilliance 16 multidetector scanner (Philips Healthcare, Cleveland, Ohio) with axial, coronal and sagittal reconstructions in bone and soft tissue windows. Further Volume rendered and Surface shaded display 3 Dimensional reconstructions were performed using Philips Extended Brilliance workspace software and measurements of the styloid process taken using electronic callipers. The styloid process often demonstrates a...

Conclusion

Eagle’s syndrome develops due to an elongation or deformation of the styloid process and ossification of the stylohyoid ligament. Radiological analysis is the basic method for diagnosis. Surgical resection of elongated styloid process is indicated with the failure of conservative treatment. Radiologists have an important role to play in the diagnosis of Eagle’s syndrome.

Personal information

References

Shreehari Ambika Krishnan, Krishnaprasad Kondajji Ramachandra, Saravanan Sampoornam Pape Reddy Carotid type of Eagle's syndrome. Journal of Indian Society of Periodontology 2015; 19(3) : 336-338 Nelson AS, Madani H, Ganguly A, and Nixon PP. "Eagle's Syndrome." EURORAD. European Society of Radiology, 29 July 2011. Web. 07 Dec. 2015 Fini G, Gasparini G, Filippini F, Becelli R, Marotullio M. The long styloid process or Eagle’s syndrome. Journal of Cranio- Maxillofacial Surgery 2000; 28:123- 127 Eagle WW. Elongated styloid process. Report of two cases. Archives of Otolaryngology...