title: Six cases report of differential diagnosis of periapical diseases.
abstract: The distinction of some particular forms of periapical area, involving diseases from regular periapical disease, is a matter of considerable importance when choosing a correct treatment. The aim of this study is to describe the differential diagnosis of periapical diseases from six rare cases in clinical practice. The six rare cases are examples of situations where it is difficult to make a differential diagnosis in clinical practice. By retrospective surveys on the clinical examination, radiographs and pathological results, six patients referred to endodontic treatment in our department were analyzed for the accuracy of diagnosis and therapy. The pathoses of the six cases included two atypical radical cysts, periapical cemental dysplasia, cemento-ossifying fibroma, thymus cancer metastasis in the periapical site and tuberculosis. This report indicates that endodontists should be cognizant of a few particular circumstances when clinically treating periapical diseases.
authors.affiliation: Department of Endodontics and Operative Dentistry, Shanghai Ninth People's Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: Wen-wei
authors.initials: WW
authors.lastname: Xia
authors.forename: Ya-qin
authors.initials: YQ
authors.lastname: Zhu
authors.forename: Xiao-yi
authors.initials: XY
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000175:diagnosis / Q000556:secondary; D003937:Diagnosis, Differential; D005260:Female; D018214:Fibroma, Ossifying / Q000175:diagnosis; D005357:Fibrous Dysplasia of Bone / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010483:Periapical Diseases / Q000175:diagnosis*; D011842:Radicular Cyst / Q000175:diagnosis; D014394:Tuberculosis, Osteoarticular / Q000175:diagnosis