Learning objectives
To recognise the normal anatomy of stylohyoid apparatus.
To identify when pathology shoul be suspected according to radiological findings.
To review the radiological modalities for diagnosis.
Background
1.
Anatomy of thestylohyoid apparatus:
The stylohyoid apparatus is formed by the styloid process,
the stylohyoid ligament and the lesser horn of the hyoid.
It is a complex structure of bone and ligament that connects the base of the skull with the body of the hyoid.
The first detailed description of it was made by Geoffroy Saint Hilarie in 1918,
according to Testut in his treatise on anatomy (Testut,
Latarjet 1977).
-Styloid process:
It is a thin and narrow protruberance of the temporal bone,
which...
Findings and procedure details
-Methods of Radiographic Study of the Estilohyoid Apparatus:
The diagnosis is based on a detailed clinical history and a correct physical examinationalong with the relevant complementary radiological tests.
Most cases are casual radiological findings in search of cervical or rhinopharyngeal pathology.
The stylohyoid apparatus can be observed in different and varied radiographic projections,
from the most basic and conventional to the most advanced of three dimensional diagnosis.
The orthopantomography is the most useful of all the projections and the most widely used,
although it also...
Conclusion
Radiologist must recognize the anatomy of the stylohyoid apparatus in order to identify the different variations that may cause symptoms.It is important to note that an elongated styloid process does not necessarily signify stylohyoid syndrome,
as the majority of individuals exhibiting this anatomical variation are without symptoms.
Thus,
the diagnosis ofstylohyoid syndromeis one of exclusion,
but must be considered in the differential diagnosis.
When suspected,
radiographs help in identifying the ossified structures,
while CT scanning provides a better depiction of the anatomy in relation to...
Personal information
Contact details:
Dr.
Jordi Vidal González.
Department of Radiology,
Hospital General Universitario de Ciudad Real.
Calle Obispo Rafael Torija,
s/n,
13005 Ciudad Real,
Spain.
Email:
[email protected]
References
1.
Isabel Pernia Ramírez.
Tesis Doctoral "Estudio descriptivo y analítico de las formaciones estilohioideas en jóvenes utilizando radiografías panorámicas".
Universidad Complutense de Madrid.
Facultad de Medicina.
Madrid,
2014.
2.
S.S.
Kumar,
M.A.
Kukkady,
A.
Deena,
A.
El Gabar Ayad: Role of three –dimensional computed tomography imaging in Eagle's syndrome.
The Internet Journal of Radiology.
2007 Volume 7 Number 2.
3.
Victor B Feldman.
Eagle’s syndrome: a case of symptomatic calcification of the stylohyoid ligaments.
(JCCA 2003; 47(1):21-27.
4.
Prasad KC,
Kamath MP,
Reddy KJ,
Raju...