Nonodontogenic cysts of the oral and maxillofacial region: demographic profile in a Brazilian population over a 40-year period

• Published in: European archives of oto-rhino-laryngology Vol. 268; no. 6; pp. 917 - 922
• Main Authors: Nonaka, Cassiano Francisco Weege, Henriques, Águida Cristina Gomes, de Matos, Felipe Rodrigues, de Souza, Lélia Batista, Pinto, Leão Pereira
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01-06-2011; Springer
• Subjects: Adolescent; Adult; Age Distribution; Aged; Aged, 80 and over; Biological and medical sciences; Biopsy; Brazil - epidemiology; Child; Child, Preschool; Facial Neoplasms - epidemiology; Facial Neoplasms - pathology; Female; Follow-Up Studies; Head and Neck Surgery; Humans; Infant; Male; Maxillary Neoplasms - epidemiology; Maxillary Neoplasms - pathology; Medical sciences; Medicine; Medicine & Public Health; Middle Aged; Miscellaneous; Morbidity - trends; Mouth Neoplasms - epidemiology; Mouth Neoplasms - pathology; Neurosurgery; Nonodontogenic Cysts - epidemiology; Nonodontogenic Cysts - pathology; Otorhinolaryngology; Otorhinolaryngology. Stomatology; Retrospective Studies; Sex Distribution; Survival Rate - trends; Time Factors; Young Adult; Brazil; Diagnosis; Nonodontogenic cysts; Biopsy; Epidemiology; Cyst; Maxillofacial; Oral administration; ENT; Benign neoplasm; Profile
• ISSN: 0937-4477; 1434-4726
• DOI: 10.1007/s00405-010-1458-x

The aim of the study was to determine the distribution of histologically diagnosed nonodontogenic cysts (nOCs) over a 40-year period in a Brazilian population. Biopsy records from patients with nOC from the files of the Oral Pathology Service during the period of 1970–2009 were evaluated. Among 10,311 oral biopsies, 58 met the criteria of nOCs. The most frequent nOCs were nasopalatine duct cysts (32.8%), followed by epidermoid cysts (20.7%) and oral lymphoepithelial cysts (17.2%). Nasopalatine duct cysts showed predominance among females (68.4%). Epidermoid cysts were most commonly found in the floor of the mouth (36.4%), tongue (27.3%), and buccal mucosa (27.3%). Oral lymphoepithelial cysts exhibited female prevalence (80.0%) and were commonly located in the tongue (44.4%). The frequency of nOCs found in the population studied here is slightly different from those reported in other case series. Nasopalatine duct cysts, epidermoid cysts, and oral lymphoepithelial cysts were the most common nOCs found, accounting for 70.7% of all nOCs.