OBJECTIVE:The purpose of this article is to illustrate the spectrum of sonographic findings in perforated pyloroduodenal peptic ulcer and discuss the potential role of sonography in the diagnosis.CONCLUSION:Although sonography is not the first-line investigation of choice in suspected perforated peptic ulcer, understanding of the characteristic appearances seen during general abdominal sonography may aid the reader in the diagnosis of this important and sometimes overlooked cause of nonspecific abdominal pain. This may shorten time to the diagnosis and ultimate surgical management.

Hip pain is a common complaint in both children and adolescents. The diagnostic challenge lies not only in the difficulties of history and examination in the paediatric population, and that hip pathology can be referred from other sites, but also that the differentials are broad. Although an accurate history and clinical evaluation are vital in narrowing this wide differential, imaging plays a key role in establishing an accurate diagnosis. The various imaging modalities available, together with the common causes of non-traumatic hip pain within the paediatric population, are reviewed in this article.

We present a case of subacute nonobstructing ileocolocolic intussusception secondary to a submucosal lipoma and a mobile cecum diagnosed sonographically in a 62‐year‐old woman. The patient was seen following a 2‐month history of nonspecific intermittent pain in the right and middle abdomen and weight loss. Sonography revealed ongoing intussusception involving distal ascending and transverse colon. Analysis of the distal intussusception end demonstrated a 3.0 × 2.5 cm echogenic polypoid lesion consistent with a lipoma serving as a lead point. The sonographic diagnosis was confirmed at surgery. © 2009 Wiley Periodicals, Inc. J Clin Ultrasound, 2010.

Dementia is an increasingly common problem in an ageing population, and poses a serious public health burden with potentially grave social and financial implications. It is now possible following the recent advancements in specialist imaging techniques to demonstrate both structural and functional changes associated with dementia. This has not only allowed the diagnosis of dementia to be made with greater confidence and substantially earlier than previously, but also, crucially, the actual subtype of dementia can often now be accurately characterized, thus facilitating the earlier introduction of newer pharmacological treatment, where appropriate.

Imaging is an important adjunct to clinical assessment in the management of patients on the intensive care unit (ICU). Chest radiography and ultrasound are the mainstays of initial evaluation, although other techniques, such as computed tomography and magnetic resonance imaging, are being increasingly utilized. This article aims to review the main indications, strengths and weaknesses of the key imaging modalities used in this patient group and to help guide appropriate selection of radiological investigations for common ICU clinical scenarios.