RESUMO
BACKGROUND: A 53-year-old male was referred to the department of maxillofacial surgery for the extraction of a destructed wisdom tooth. A preoperative orthopantomogram revealed a well delineated ovoid, radiolucent lesion at the left angle of the mandible. For further lesion characterization, a dental CT scan and MRI were performed.
RESUMO
Noonan syndrome (NS) is an etiologically heterogeneous disorder caused by mutations in the RAS-MAPK signaling pathway. Noonan-Like/Multiple Giant Cell Lesion (NL/MGCL) syndrome is initially described as the occurrence of multiple gnathic giant cell lesions in patients with phenotypic features of NS. Nowadays, NS/MGCL syndrome is considered a variant of the NS spectrum rather than a distinct entity. We report the case of a 14-year-old female patient carrying a SOS1 mutation with a unilateral giant cell lesion of the right mandible. Cross-sectional imaging such as CT and MRI are not specific for the diagnosis of oral giant cell lesions. Nonetheless, intralesional scattered foci of low SI on T2-WI, corresponding to hemosiderin deposits due to hemorrhage, can help the radiologist in narrowing down the differential diagnosis of gnathic lesions in patients with NS.
Assuntos
Granuloma de Células Gigantes/diagnóstico , Mandíbula/diagnóstico por imagem , Mandíbula/patologia , Síndrome de Noonan/diagnóstico , Adolescente , Diagnóstico Diferencial , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Tomografia Computadorizada por Raios X/métodosRESUMO
The clinical and radiographic diagnosis and treatment plan for a patient with a rare type of extracapsular ankylosis involving fusion of the zygoma and coronoid process are presented.
Assuntos
Anquilose/cirurgia , Mandíbula/cirurgia , Zigoma/cirurgia , Acidentes de Trânsito , Adulto , Anquilose/diagnóstico por imagem , Anquilose/etiologia , Humanos , Masculino , Mandíbula/diagnóstico por imagem , Motocicletas , Tomografia Computadorizada por Raios X , Zigoma/diagnóstico por imagemRESUMO
A case of a fracture of the coronoid process associated with a depressed zygomatic fracture is described. Clinical signs, radiology (3D-CT scan), treatment and follow-up are presented.
