To know the 4 basic questions in radiological evaluation of mandibular / maxillary lesions. To review the characteristics of the main cystic and tumoral odontogenic lesions,
emphasizing the answer of the 4 basic questions.
Radiologists who report head and neck exams often face mandibular / maxillary lesions,
either as the main finding of the examination or as an incidental finding.
Many of these lesions are of dental origin,
and their nature is varied: cysts of the odontogenic apparatus,
neoplasms (benign or malignant),
among others. The imaging findings of many of these diseases may be indistinguishable,
despite considerable differences in the underlying pathological process,
reason why the histological study...
Findings and procedure details
The basic radiological approach to mandibular / maxillary lesions should include 4 questions: 1) Is the lesion related to a tooth? (odontogenic v/s non-odontogenic); 2) Where is the lesion located with respect to the tooth? (periapical v/s pericoronary v/s inter-radicular); 3) How the lesion acts with respect to the neighboring teeth (displacement v/s resorption of the roots); 4) What is the density of the lesion? (radiolucent v/s mixed v/s radiodense).
These questions are outlined in Fig. 2...
The role of the radiologist when facing an odontogenic lesion is to narrow the differential diagnosis,
characterizing the extent and complexity of the lesion. The diagnostic approach of odontogenic lesions should include answering 4 questions: 1) Is the lesion related to a tooth? (odontogenic v/s non-odontogenic); 2) Where is the lesion located with respect to the tooth? (periapical v/s pericoronary v/s inter-radicular); 3) How the lesion acts with respect to the neighboring teeth...
Department of Radiology,
Universidad de Chile.
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