NUMERO: #20260116

Título: FOREGUT CYST: A CASE REPORT AND A RARE DIFFERENTIAL DIAGNOSIS FOR SUBMANDIBULAR MASSES

Nome do Apresentador: Pietra Bezerra PRESTES

Categoria do Trabalho: Pôster - Relato de Caso ou Série de Casos

Área Temática: Patologia Oral

Resumo: Foregut cysts (FC) are uncommon hamartomas in the head and neck region; when they do occur, the oral cavity is most frequently affected. This report describes a 50-year-old male patient who reported the appearance of a nodular lesion in the left cervical region since 2014, with progressive increase in size and discomfort during swallowing, but no pain or other complaints. Cervical ultrasonography revealed a cystic lesion in levels IB and IIA, with well defined margins, anechoic, and no flow on Doppler, suggestive of a branchial cyst. After surgical excision, macroscopic examination identified a well vascularized cystic lesion measuring 8.0x6.0x4.0cm, filled with gelatinous fluid. Microscopically, a fibrous capsule was observed, exhibiting collagen fibers, numerous blood vessels, and smooth muscle cells (SMA+), along with a predominantly columnar epithelial lining rich in mucous cells (PAS+, CK7+, CK20-), findings suggestive of FC. Treatment consists of the excision itself, which is both diagnostic and therapeutic.

Autor 1:  Pietra Bezerra PRESTES

E-mail 1:  [email protected]

Autor 2:   Lesemky Carlile Herculano CATTEBEKE

E-mail 2:  [email protected]

Autor 3 :  Hélen Kaline Farias BEZERRA

E-mail 3:  [email protected]

Autor 4:  José Victor Duarte FRANCO

E-mail 4:  [email protected]

Autor 5:  Pablo Agustin VARGAS

E-mail 5:  [email protected]

Autor 6:  Tatiana Nayara LIBÓRIO-KIMURA

E-mail 6:  [email protected]

Autor 7:  Jeconias CÂMARA

E-mail 7:  [email protected]