NUMERO: #20231070

Título: Habit of chewing coca leaf impregnated with pesticides associated to multiple oral leukoplakia with lichenoid mucositis

Nome do Apresentador: Aloizio Premoli MACIEL

Categoria do Trabalho: Apresentação oral de casos clínicos (AOC)

Área Temática: Estomatologia

Resumo: A 45-year-old brown man was referred for a biopsy of asymptomatic oral lesions. Habit of chewing coca leaves and exposed to pesticides and history of oral cancer. Local inspection revealed on the posterior right side of the tongue white irregular plaques with areas of erosion of 3x2cm. A second lesion was identified extending from vestibular gingiva of tooth 47 to the vestibular gingiva of tooth 35 and internal mucosa of lower lip. The clinical aspect was white heterogeneous plaque followed by erosions and lichenoid characteristics 7x2x3cm. The diagnostic hypotheses were oral leukoplakia (OL), lichen planus and SSC. Multiple incisional biopsies were performed and demonstrated epithelial hyperplasia, lichenoid mucositis, and high-grade epithelial dysplasia, compatible with OL in tongue and OL without dysplasia in gingiva and lower lip mucosa. New biopsies were performed in the follow-up without signs of dysplasia. Chewing coca leaf by pesticides, may have caused OL with lichenoid inflammation.

Autor 1:  Aloizio Premoli MACIEL

E-mail 1:  [email protected]

Autor 2:   Amanda Silvério de ALMEIDA

E-mail 2:  [email protected]

Autor 3 :  Victor TIEGHI NETO

E-mail 3:  [email protected]

Autor 4:  Fábio Luiz CORACIN

E-mail 4:  [email protected]