RESUMO
Sister Mary Joseph nodule is a nodule localized in the umbilicus which represents a cutaneous metastasis from a primary cancer, mostly localized in the abdomen. We report the case of an 82-year-old woman who presented with an ulcerated umbilical nodule. Imaging identified it as a Sister Mary Joseph nodule, representing the only distant metastasis from a silent caecal adenocarcinoma. When an umbilical nodule is found at clinical examination imaging can play a crucial role in determining underlying pathology and in determining therapeutic strategy.
RESUMO
PURPOSE: This study was done to evaluate the role of fetal magnetic resonance imaging (MRI) in the study of gastrointestinal malformations in comparison to prenatal ultrasound (US). MATERIALS AND METHODS: A prospective (2010-2012) study of 38 fetal MRI scans was performed on 38 fetuses between 24 and 38 weeks of gestation. All the fetuses had a US diagnosis of gastrointestinal anomalies. T2-weighted HASTE, T1-weighted fast gradient echo, TrueFISP and diffusion-weighted images of the fetal abdomen were obtained on a 1.5-Tesla magnet. All fetal MRI diagnoses were compared with postnatal US findings, autopsy or surgical reports. RESULTS: Fetal MRI was able to confirm the sonographic findings in nine of 38 fetuses (23.7%), to provide additional information in 23 of 38 fetuses (60.6%), to exclude the US diagnosis in five cases (5.2%) and to change it in two cases (5.2%). It was not able to characterize a case of gastric duplication and a case of abdominal cystic lymphangioma (5.2%). CONCLUSIONS: Fetal MRI can be used as a complementary imaging modality to US in prenatal evaluation of gastrointestinal anomalies and can be considered a valuable tool not only for confirming or excluding but also for providing additional information to fetal ultrasonographic findings.
Assuntos
Trato Gastrointestinal/anormalidades , Imageamento por Ressonância Magnética/métodos , Diagnóstico Pré-Natal/métodos , Adulto , Diagnóstico Diferencial , Feminino , Humanos , Gravidez , Estudos Prospectivos , Ultrassonografia Pré-NatalRESUMO
The adrenal gland is a common site of a large spectrum of abnormalities like primary tumors, hemorrhage, metastases, and enlargement of the gland from external hormonal stimulation. Most of these lesions represent nonfunctioning adrenal adenomas and thus warrant a conservative management. Multi-detector computed tomography (CT) and magnetic resonance (MR) imaging are still considered highly specific and complementary techniques for the detection and characterization of adrenal abnormalities. Radiologist can establish a definitive diagnosis for most adrenal masses (i.e., carcinoma, hemorrhage) based on imaging alone. Imaging therefore can differentiate malignant lesions from those benign and avoid unnecessary aggressive management of benign lesions. The article gives an overview of the adrenal lesions and their imaging characteristics seen on CT and MR imaging.