An Isolated Laminar Osteoma Arising in the Maxillary Sinus

Abstract

Objective:Rare disease Background:Osteomas are benign tumors characterized by proliferation of dense or trabecular bone. Most osteomas of the head and neck occur in the mandible, they rarely occur in the maxillary sinus, and free osteomas are extremely rare. While usually detected incidentally on plain radiographs, symptoms appear when the osteoma obstructs the sinus orifice or invades the adjacent orbit or intracranial structures. Herein, we report a case of a patient with an isolated laminar osteoma arising in the maxillary sinus. Case Report:A 52-year-old man presented to our hospital with a radiopaque mass in the right maxillary sinus. An oval mass of size 2.7×2.3 cm was observed in the right maxillary sinus on computed tomography, and no sinusitis was present. Under general anesthesia, the mass was removed orally via the modified Caldwell-Luc method. Histopathologic examination revealed layered compact bony tissue covered by the sinus membrane. The mass was free from the inferior wall of the right maxillary sinus, and a part of the mass was covered by the sinus membrane. The postoperative course was uneventful, and no recurrence was noted after 5 years. Conclusions:We experienced a case of an extremely rare osteoma in the maxillary sinus. The osteoma was solitary and free within the maxillary sinus. The treatment performed was surgical excision using the modified Caldwell-Luc method. The cause of the free osteoma was thought to be odontogenic maxillary sinusitis caused by apical periodontitis of the nearby tooth.

Navegação em software livre e impressão 3D aplicada ao tratamento de osteoma mandibular

“…Portanto, as manifestações clínicas são muito variáveis e associadas com a localização inicial da lesão (Yamasoba et al, 1990). Os locais mais frequentes de aparecimento das lesões são a mandíbula e os seios paranasais (frontal, etmoidal, maxilar e esfenoidal), seguido pelas tábuas cranianas interna e externa e osso maxilar (Taketomi et al, 2023;Tarsitano et al, 2021;Yamasoba et al, 1990). Quando envolvem os seios paranasais, ocupando o complexo ostiomeatal, podem promover a interrupção da drenagem do muco e do fluxo aéreo, manifestando-se clinicamente como uma sinusite, causando dor e obstrução nasal (Movio & Ahmed, 2023).…”

Osteoma de seio maxilar invadindo órbita: relato de caso

“…É mais comum no seio frontal, seguido pelos seios etmoidal, maxilar e esfenoidal. Osteomas livres são excepcionalmente raros (TIAGO et al, 2002;HERREIRA-FERREIRA et al, 2022;TAKETOMI et al, 2023).…”

“…Os osteomas geralmente são pequenos, de crescimento lento e assintomáticos, mas podem tornar-se progressivos, às vezes comprimindo ou infiltrando áreas adjacentes, ou atingindo tamanhos maiores (CARRERA et al, 2009;CESA et al, 2013;BRETONES et al, 2023). É diagnosticado quando há achados radiográficos periódicos ou aumento de tecidos moles que causam assimetria e disfunção facial (MEHTA; SHARR; PENNEY, 1999;CARVALHO et al, 2008;CESA et al, 2013), contudo os sintomas aparecem quando os osteomas bloqueiam a abertura dos seios paranasais ou invadem estruturas orbitais ou intracranianas adjacentes (SILVA et al, 2020;TAKETOMI et al, 2023).…”