NUMERO: #20250397

Título: PRIMARY INTRAOSSEOUS CARCINOMA (PIOC) IN A YOUNG ADULT: CASE REPORT AND DIAGNOSTIC APPROACH

Nome do Apresentador: Giovana Areco Maldonado SANDIM

Categoria do Trabalho: Painel de caso clínico (PCC)

Área Temática: Oncologia

Resumo: Primary Intraosseous Carcinoma (PIOC) is a rare malignant neoplasm derived from odontogenic epithelium, typically of cystic origin, and more common in men over 50. A 35-year-old man, non-smoker and non-drinker, presented with facial discomfort. Clinical examination revealed swelling in the right mandibular angle. Panoramic radiography showed a well-defined unilocular radiolucent lesion partially surrounding the crown of a partially impacted tooth #48. No mucosal changes or discharge were observed. An inflamed paradental cyst was suspected, and tooth #48 was extracted, followed by curettage. Histopathological analysis revealed a moderately differentiated squamous cell carcinoma. PET/CT and videolaryngoscopy ruled out other primary sites and confirmed the diagnosis of PIOC, likely associated with a paradental cyst. The patient underwent segmental mandibulectomy with cervical dissection, followed by chemotherapy and adjuvant radiotherapy. He remains under close follow-up with no signs of recurrence after five months.

Autor 1:  Giovana Areco Maldonado SANDIM

E-mail 1:  [email protected]

Autor 2:   Danielle Martins STARTARI

E-mail 2:  [email protected]

Autor 3 :  Gabriela Moura CHICRALA-TOYOSHIMA

E-mail 3:  [email protected]

Autor 4:  Ellen Cristina GAETTI-JARDIM

E-mail 4:  [email protected]

Autor 5:  Daniella Moraes ANTUNES

E-mail 5:  [email protected]

Autor 6:  Yuri NEJAIM

E-mail 6:  [email protected]

Autor 7:  Gleyson Kleber do AMARAL-SILVA

E-mail 7:  [email protected]