Chronic periapical lesions: clinical and morphological characterization of 508 cases

Autores

DOI:

https://doi.org/10.5327/2525-5711.435

Palavras-chave:

Odontogenic Cyst, Radicular Cyst, Periapical Granuloma, Residual Radicular Cyst

Resumo

Objective: To evaluate the clinical and morphological findings of chronic periapical lesions (CPL) composed of periapical granuloma (PG), radicular cyst (RC), and residual radicular cyst (RRC). Methods: Sample was collected from an Oral Pathology Service over 10-year period. Histomorphological analysis was performed qualitatively. For estatistical analysis were used Fischer’s exact and Q2 tests, considering value p<0.05. Results: Among the 4.808 cases retrieved from the service, 508 (10.6%) cases were CPL. PG was the most frequent lesion (n=264; 51.96%). RC and PG were more prevalent among young adults, while RRC affected older patients (p<0.0001). Morphologically, lower grade of intensity of the inflammatory infiltrate (Grade I) was founded in RRC, compared to PG and RC (Grade II/III) (p<0.0001). Atrophic epithelium was more present in RRC, whereas hyperplastic epithelium was more observed in RC (p=0.012). Russell bodies and foamy macrophages were more frequent in PG (p<0.05). Rushton bodies and negative images of cholesterol crystals were more observed in RC (p<0.05). Conclusions: CPL are a common condition frequently associated with persistent endodontic infection and represent a significant clinical challenge in dental practice. Therefore, clinical and morphological comprehensive characterization of CPL is important for their correct diagnosis and treatment.

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Publicado

2026-02-20

Como Citar

1.
Rocha TB da, Meneses RKL de, Henriques NYA, Cunha JLS, Gordón-Núñez MA, Nonaka CFW, et al. Chronic periapical lesions: clinical and morphological characterization of 508 cases. J Oral Diagn [Internet]. 20º de fevereiro de 2026 [citado 17º de abril de 2026];11. Disponível em: https://jordi.com.br/revista/article/view/435

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