Imaging of focal hepatic lesions: self-assessment module.

Focal hepatic lesions are one of the diagnostic challenges in daily practice. This article focuses on the imaging features of focal hepatic lesions on different imaging modalities, including sonography, CT, and MRI.

Spectrum of normal and abnormal CT appearances of the ileocecal valve and cecum with endoscopic and surgical correlation.

Because of advances in imaging technology, evaluation of the gastrointestinal tract is increasingly being performed with cross-sectional imaging (eg, computed tomographic [CT] colonography, CT enterography). However, the diagnosis of disease involving the ileocecal valve (ICV), cecum, and appendix with CT can be challenging. The normal ICV can have many different appearances, depending on cecal distention and mobility, whether the valve is open or closed, and inherent variable morphologic characteristics.

Bladder Endometriosis: Ultrasound and MRI Findings.

Bladder endometriosis is a rare cause of a localized bladder mass, potentially mimicking a neoplasm at cross-sectional imaging. We present the case of a patient with cyclic pelvic pain and urinary symptoms secondary to bladder endometriosis, with characteristic pelvic ultrasound and magnetic resonance imaging findings. Potential pathological mechanisms are discussed.