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A Journal on Dentistry and Maxillofacial Surgery
Minerva Stomatologica 2011 November-December;60(11-12):567-72
Nasolabial cyst: 18.5 year experience in a pathology laboratory
Lopes-Rocha R. 1,2, Dornela Verli F. 2, Lages Lima N. 2, Rocha Dos Santos C. R. 3, Aparecida Marinho S. 2, 3 ✉
1 School of Dentistry, Postgraduate Program in Dentistry. Universidade Federal dos Vales do Jequitinhonha e, Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil;
2 Laboratory of Pathology, Department of Basic Sciences, Postgraduate Program in Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, Minas Gerais, Brazil;
3 Stomatology Clinic, School of Dentistry, Postgraduate Program in Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina Minas Gerais, Brazil
AIM:This paper offers a survey of nasolabial cysts diagnosed at the Pathology Laboratory of the Universidade Federal dos Vales do Jequitinhonha e Mucuri (Brazil) over a period of 18.5 years, and a case report.
METHODS: A retrospective study was carried out on biopsies performed at the Pathology Laboratory of the UFVJM School of Dentistry between January 1992 and July 2010.
RESULTS: Among a total of 2730 histopathological exams of biopsies performed at the UFVJM Pathology Laboratory, 288 (10.54%) were different types of cysts, The prevalence of NLC was 0.29% (8 cases) in relation to the overall sample and 2.43% among all cysts. NLC only occurred in the female gender in the age group spanning from 25 to 62 years (mean: 40.00 years; standard deviation (SD): 13.48 years). The duration of evolution ranged from six to 18 months (mean: 12 months; SD: 3.79 months). The cysts were asymptomatic in 62.5% of cases. Cyst size ranged from 10 to 30 mm (mean: 16.86; SD: 8.00 mm). In six cases (75%), the radiographic exams were consistent with the final diagnosis, whereas there were no records of radiographic images in two cases (25%). Surgical excision was the treatment of choice for all cases.
CONCLUSION: The characteristics of NLC, such as location, elevation of the nasal wing, disappearance of the nasolabial sulcus, nasal obstruction, floatation of the cyst and the presence of cystic liquid in the interior, are enough to suggest the diagnosis of this cyst. However, the confirmation of the diagnosis is performed through biopsy and histopathological analysis.