RESUMEN
Spontaneous rupture of the spleen is an uncommon emergency that usually occurs in a spleen affected by hematologic, neoplastic, or infectious diseases or as a complication of acute or chronic pancreatitis. This condition requires early diagnosis and appropriate treatment. Intrasplenic aneurysms are rare and rupture of the spleen secondary to intrasplenic aneurysm is extremely rare. We present the imaging findings for a case of splenic rupture secondary to an intrasplenic aneurysm. The patient was treated by percutaneous embolization, with excellent results. We review the literature on this entity and its endovascular treatment.
Asunto(s)
Aneurisma/complicaciones , Arteria Esplénica , Rotura del Bazo/etiología , Humanos , Masculino , Persona de Mediana Edad , Rotura EspontáneaRESUMEN
OBJECTIVE: Oncocytoma is a relatively uncommon benign kidney tumor. To date, it has been impossible to differentiate this tumor from renal cell carcinoma radiologically, although few articles report on the use of tri-phase CT in this tumor. We describe the triphasic CT findings in these tumors and evaluate whether some characteristics, although not sufficient to ensure the diagnosis, can suggest the possibility of oncocytoma. In some cases, this may lead to a different approach to the management of patients. MATERIAL AND METHODS: We describe the tri-phase CT findings in 10 cases of oncocytoma in eight patients (one case was bilateral and multifocal). The diagnosis was made after histological examination of surgical specimens in all cases. RESULTS: All the tumors were found incidentally at ultrasound examination prior to CT study. Tumors all had well-defined borders, and their size ranged from 3 to 15 cm, with a mean diameter of 5.2 cm. One patient had bilateral tumors (2 right and 1 left). All but one of the tumors had a star-shaped scar inside, with a marked lobular pattern in one case. All tumors showed avid uptake, with mean enhancement of 120 HU in the arterial phase and 116 HU in the venous phase. All patients evolved favorably with no post-surgical relapse. CONCLUSIONS: Although oncocytoma cannot be differentiated from renal cell carcinoma with certainty, the possibility of oncocytoma should be suggested in the case of small tumors with a central scar, without necrosis or infiltration, and an enhancement pattern as described here. Regardless of the size of the tumor, lobular morphology should also suggest this possibility.
Asunto(s)
Adenoma Oxifílico/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Tomografía Computarizada Espiral , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios RetrospectivosRESUMEN
Finger lesions are a frequent problem because of their functional significance and their small size. Because of this, the radiologist has an important role to play in the correct presurgical diagnosis. The aim of this article is to describe the anatomy and the characteristic US and MR findings of the most common tumor and tumor-like lesions of the fingers, and to discuss the differential diagnosis in cases of unspecific or non-diagnostic findings. We present representative cases selected from 62 patients evaluated at our institution, with pathologic correlation.