title: Oral pathology quiz #69. Case number 3. Parulis.
mesh_terms: D003751:Dental Fistula / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D010482:Periapical Abscess / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography