Dermoid and epidermoid cysts of the oral cavity: a 48-year retrospective study with focus on clinical and morphological features and review of main topics.

Autor:	Santos HB; Postgraduate Program in Dental Sciences Federal University of Rio Grande do Norte Av. Salgado Filho, 1787, Lagoa Nova - Natal / RN CEP: 59056-000. Brazil leliabsouza@gmail.com., Rolim LS, Barros CC; Postgraduate Program in Dental Sciences Department of Dentistry, Federal University of Rio Grande do Norte Av. Salgado Filho, 1787, Lagoa Nova CEP: 59056-000. Natal-RN, Brazil patriciateixeira21@gmail.com., Cavalcante IL, Freitas RD, Souza LB
Jazyk:	angličtina
Zdroj:	Medicina oral, patologia oral y cirugia bucal [Med Oral Patol Oral Cir Bucal] 2020 May 01; Vol. 25 (3), pp. e364-e369. Date of Electronic Publication: 2020 May 01.
DOI:	10.4317/medoral.23388
Abstrakt:	Background: Dermoid and epidermoid cysts are slow-growing, benign developmental cysts that arise from ectodermal tissue and can occur anywhere in the body. Less than 7% of these cysts involve the head and neck region, with only 1.6% of cases presenting in the oral cavity. To evaluate the clinical and histopathological features of dermoid (DCs) and epidermoid (ECs) cysts stored in the archives of a referred Oral Pathology Service over a 48-year-period, and to review current concepts about these cysts. Material and Methods: All DCs and ECs were reviewed, and clinical data were obtained from the patient records. Fourteen cases of DCs and thirteen cases of ECs were re-evaluated microscopically by 2 oral pathologists. Results: Among 15.387 cases, 14 (0.09%) had a histopathological diagnosis of DCs and 13 (0.08%) of ECs. For DCs, ten (71.4%) patients were women, with the mean age of 37.2 years. All DCs were lined by a stratified squamous epithelium (100%), with gut and respiratory epithelium observed in 1 (7.1%) and 2 (14.3%) cases, respectively. Chronic inflammatory cells, melanin, multinucleated giant cell reaction, and Pacini bodies were also observed. For ECs, eight (61.5%) cases were in women, and the mean age was 38.2 years. All ECs were lined by a stratified squamous epithelium (100%). Chronic inflammatory cells, melanin pigmentation, and adipose tissue were observed in the fibrous capsule. Conclusion: Our results suggest that stratified squamous epithelium is the predominant epithelial lining of these cystic lesions. Also, we may find some unusual findings in DCs, such as Pacini bodies.
Databáze:	MEDLINE
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