RESUMO
We report an uncommon case of small renin secreting tumor of the kidney located in the medulla. The tumor was primarily detected by MRI and subsequently studied by spiral CT. The results and limitations of both techniques are discussed.
Assuntos
Adenocarcinoma/diagnóstico , Neoplasias Renais/diagnóstico , Imageamento por Ressonância Magnética , Renina/metabolismo , Adenocarcinoma/diagnóstico por imagem , Adenocarcinoma/metabolismo , Estudos de Avaliação como Assunto , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/metabolismo , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios XAssuntos
Oftalmopatias/terapia , Oxigenoterapia Hiperbárica , Retinopatia Diabética/terapia , Fibrinolíticos/uso terapêutico , Humanos , Oxigenoterapia Hiperbárica/efeitos adversos , Atrofia Óptica/terapia , Neurite Óptica/terapia , Artéria Retiniana , Degeneração Retiniana/terapia , Veia Retiniana , Retinose Pigmentar/terapia , Tromboflebite/terapia , Trombose/terapia , Fatores de Tempo , Vasodilatadores/uso terapêutico , Acuidade Visual , Campos VisuaisAssuntos
Extração de Catarata , Cristalino/cirurgia , Adulto , Idoso , Criocirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-OperatóriasRESUMO
We describe the MRA and MR angiography (MRA) features of persistent trigeminal artery (PTA) found incidentally in eight patients, with special attention to its origin, site and course. The different patterns of posterior communicating arteries were also noted. The PTA were shown on sagittal, coronal and axial MRI and on MRA. In four cases, the PTA arose from the lateral aspect of the intracavernous internal carotid artery, ran caudally, passing round the bottom of the dorsum sellae to join the basilar artery. In the other four cases, it arose from the medial aspect, ran caudally through the sella turcica and pierced the dorsum sellae to join the basilar artery. The posterior communicating arteries were present unilaterally in five cases and bilaterally in one, and absent bilaterally in two. Identification of a PTA with a trans-sellar course is crucial if a trans-sphenoidal surgery is planned.