Dental Journals
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Ultrasound real-time imaging in the differential diagnosis of periapical lesions.
Cotti E, Campisi G, Ambu R, Dettori C. - Int Endod J. 2003 Aug;36(8):556-63.
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AIM:
To assess whether the use of real-time ultrasound imaging (echography),
together with the application of 'Colour Power Doppler', can help the differential
diagnosis of periapical lesions based on their contents.
METHODOLOGY:
Eleven patients diagnosed with periapical lesions using conventional clinical
and radiographic findings and who had been scheduled for endodontic surgery were
examined using ultrasound imaging and Colour Power Doppler at the site of the lesions.
Lesions were described in each case by an expert echographist, together with an
endodontist, according to a scheme described previously. Information on the size
of each lesion, its content and its vascular supply was gained and recorded by
means of the ultrasound images; then, a tentative differential diagnosis between
a cyst and a granuloma was made. The lesions obtained during endodontic surgery
were processed and examined with a light microscope. The results from the biopsies
were compared with the descriptions made with the ultrasound images.
RESULTS:
The differential diagnoses between periapical granulomas and
cystic lesions, which were based on the echograpic findings, were
confirmed by the results of the histopathologic examination in all
the 11 cases: four being granulomas and seven being cystic lesions.
CONCLUSIONS:
Ultrasound real-time imaging is a technique that may help make
a differential diagnosis between cysts and granulomas by revealing
the nature of the content of a bony lesion. This technique may have
further applications in the study of other lesions of the jaws.
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