NUMERO: #20230443

Título: INVERTED DUCTAL PAPILLOMA ON THE LOWER LIP: A REPORT OF A RARE CASE

Nome do Apresentador: Danielle Machado FARIAS

Categoria do Trabalho: Painel de caso clínico (PCC)

Área Temática: Patologia Oral

Resumo: This report describes a rare case of oral inverted ductal papilloma. A 54-year-old female patient presented with a painless nodular lesion on the lower lip of unknown duration. Clinically, the lesion appeared as a submucosal nodule, with normal-color and smooth surface, measuring 1.0 cm. A benign mesenchymal neoplasm was the clinical diagnosis. Under local anesthesia, an excisional biopsy was performed. Microscopically, rounded endophytic projections of squamous and cuboidal epithelial cells were observed in the transition zone between the secretory duct and the oral cavity epithelium, presenting numerous clear cells, microcystic structures and isolated mucous cells. The tumor cells were positive for CK7, CK14, and CK19. Ki67 presented restrict positivity to basal cells. Thus, the final diagnosis was inverted ductal papilloma. After the excision, no signs of recurrence were observed after 1 year of follow up. Although rare, inverted ductal papilloma should be considered in the differential diagnosis of lip nodules.

Autor 1:  Danielle Machado FARIAS

E-mail 1:  [email protected]

Autor 2:   Carla Isabelly Rodrigues FERNANDES

E-mail 2:  [email protected]

Autor 3 :  Éder Gerardo dos Santos-LEITE

E-mail 3:  [email protected]

Autor 4:  Juliana Cavalcante de OLIVEIRA

E-mail 4:  [email protected]

Autor 5:  Pablo Agustin VARGAS

E-mail 5:  [email protected]

Autor 6:  Danyel Elias da Cruz PEREZ

E-mail 6:  [email protected]

Autor 7:  Elaine Judite de Amorim CARVALHO

E-mail 7:  [email protected]