title: Mixed periapical lesion: differential diagnosis of a case.
abstract: A radicular cyst associated with carious teeth is a very common odontogenic lesion in the oral cavity, but calcifications in residual radicular cysts are quite rare. We report one such case where a routine pre-implant radiographic assessment revealed a mixed periapical radiopaque radiolucent lesion in the right maxillary central incisor region. Histological and radiographic studies show that there is a slow increase in the mineralized deposits within the cyst lumen with time. This becomes prominent histochemically in cysts more than 8 years old and radiographically 6 years later, as seen in our case. In this paper we would like to highlight the importance of a residual radicular cyst with calcifications in the differential diagnosis of a mixed periapical radiopaque radiolucent lesion.
authors.affiliation: Department of Oral Medicine and Radiology,Thai Moogambigai Dental College, Golden George Nagar, Chennai 600107, TamilNadu, India. drckrithika@yahoo.co.in
authors.forename: C
authors.initials: C
authors.lastname: Krithika
authors.forename: S
authors.initials: S
authors.lastname: Kota
authors.forename: K S
authors.initials: KS
authors.lastname: Gopal
authors.forename: D
authors.initials: D
authors.lastname: Koteeswaran
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007180:Incisor; D008439:Maxillary Diseases / Q000000981:diagnostic imaging*; D008441:Maxillary Neoplasms / Q000000981:diagnostic imaging*; D018333:Odontogenic Cyst, Calcifying / Q000000981:diagnostic imaging* / Q000209:etiology; D010483:Periapical Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D011842:Radicular Cyst / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography; D014082:Tooth Fractures / Q000150:complications; D055815:Young Adult