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Imaging findings of pericoronal myxofibrous hyperplasia: Panoramic radiography and multidetector computed tomography
Author(s) -
Ogura Ichiro,
Tanaka Satoshi,
Mizutani Masutaka,
Okada Yasuo
Publication year - 2020
Publication title -
oral science international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 13
eISSN - 1881-4204
pISSN - 1348-8643
DOI - 10.1002/osi2.1046
Subject(s) - medicine , radiography , radiology , expansive , maxilla , multidetector computed tomography , panoramic radiograph , tomography , impacted tooth , lesion , computed tomography , nuclear medicine , dentistry , molar , surgery , materials science , compressive strength , composite material
Aims The aim of this study was to investigate the imaging findings of pericoronal myxofibrous hyperplasia (PMH), especially panoramic radiography and multidetector computed tomography (MDCT). Materials and methods In all, 13 patients with PMH who underwent panoramic radiography and MDCT were included in this study. For patients with PMH, interpretation with panoramic radiography and MDCT findings were independently analyzed by two oral and maxillofacial radiologists. Any discrepancies of the imaging evaluation were resolved by consensus of the two oral and maxillofacial radiologists. Results Almost all cases with PMH were teenage (n = 11, 84.6%), women (n = 10, 76.9%), and maxilla (n = 9, 69.2%). Of all cases with PMH, the interpretation with panoramic radiography was as dentigerous cyst (n = 4, 30.8%) or unerupted tooth (n = 9, 69.2%). MDCT findings of all cases were expansive process around crown of impacted tooth. MDCT showed well‐defined unilocular lesion and spread of lesion to better advantage than panoramic radiography. Furthermore, the CT values of PMH were 13.9 ± 3.9 HU (range, 8.4‐22.0 HU). Conclusions The results of the present study indicate the clinical and imaging features of PMH. We believe that PMH is often misdiagnosed because of the overlap of its histological features with other odontogenic cysts or unerupted tooth.