Reversible 'Unstable' Abdominal Angina Caused by Ruptured Plaque of the Superior Mesenteric Artery: Clinical and Radiological Correlations.

Unlabelled: Unstable angina, characteristic of coronary artery disease, is caused by in-situ clot formation complicating ruptured atheromatous plaque. Abdominal angina, however, usually reflects chronic mesenteric ischaemia, caused by multi-vessel stable plaques involving mesenteric arteries. Herein, we describe a patient with new-onset abdominal pain caused by a ruptured atheromatous plaque at the superior mesenteric root.

Existing Scores Fail to Predict Bowel Ischemia in Patients With Adhesive Small Bowel Obstruction.

Introduction: Early recognition of bowel ischemia is critical in patients suffering from acute adhesive small bowel obstruction (ASBO). Recent studies attempted to propose a score combining clinical and radiological factors to predict the risk of bowel ischemia in patients with ASBO. This study aimed to compare and validate the existing clinical scores with a cohort of surgical patients.

Parenchymal echotexture changes as a predictor of viability in testicular torsion.

Introduction: Preoperative test that can predict the salvageability of the torsed testis may add essential information to the surgeon managing testicular torsion (TT), this can assist with patients' and parents' expectations, particularly with nonviable testes. We aimed to examine if parenchymal echotexture changes in preoperative ultrasound can predict irreversible hemorrhagic necrosis.

Materials And Methods: Preoperative ultrasound studies of 154 patients with TT were reviewed by 3 raters (2 radiologists and 1 urologist).

Ultrasonographic features can predict outcome of conservative management of acute appendicitis in children.

Purpose: To determine whether specific ultrasonographic features can predict failure of conservative treatment of acute appendicitis.

Methods: A 2-year retrospective study was conducted on children admitted with acute appendicitis. Those with uncomplicated appendicitis diagnosed solely by ultrasound, and treated conservatively, were followed 18-24 m to assess treatment outcome.

Lymphadenopathy Associated With the COVID-19 Vaccine.

The coronavirus disease 2019 (COVID-19) pandemic has dominated nearly everyone's life since its initial outbreak in the Hubei province of China in December 2019. The disease had spread quickly throughout the world causing extensive, widespread morbidity, over two million deaths, and economical and social devastation over the entire world. Researchers and pharmaceutical companies around the globe have been racing to develop potent and safe vaccines for the disease.

Opportunistic screening for osteoporosis and osteopenia by routine computed tomography scan: A heterogeneous, multiethnic, middle-eastern population validation study.

Purpose: We aimed define thresholds for HU values observed on opportunistic CT scans that suggest abnormal bone mineral density (BMD) in a heterogeneous Middle Eastern population.

Methods: Consecutive patients who had undergone CT and dual-energy X-ray absorptiometry (DXA) test of the lumbar spine within 6 months were included in this retrospective study. Hounsfield units (HU) on lateral lumbar spine CT and BMD at the spine and hip on DXA were compared.

CT severity indices derived from low monoenergetic images at dual-energy CT may improve prediction of outcome in acute pancreatitis.

Objectives: To determine whether imaging features and severity indices using low monoenergetic DECT images improve diagnostic conspicuity and outcome prediction in acute pancreatitis compared to conventional images.

Methods: A retrospective study of patients with clinical and radiographic signs of acute pancreatitis who underwent 50 contrast-enhanced CT exams conducted on a single-source DECT was performed. Representative conventional and 50 keV-monoenergetic images were randomized and presented to four abdominal radiologists to determine preferred imaging for detecting fat stranding and parenchymal inflammation.

OPPORTUNISTIC EVALUATION OF BONE MINERAL DENSITY BY PET-CT IN HODGKIN LYMPHOMA PATIENTS.

Bone density loss and increased risk for osteoporosis are of concern in Hodgkin lymphoma (HL) patients. Routinely performed positron emission tomography-computed tomography (PET-CT) scans could be informative in assessing bone mineral density (BMD). This retrospective study included 80 adults with newly diagnosed HL treated with standard first-line chemotherapy regimens.

Use of Unenhanced Abdominal Computed Tomography for Assessment of Acute Non-Traumatic Abdominal Pain in the Emergency Department.

Background: Acute non-traumatic abdominal pain is typically evaluated by abdomino-pelvic computed tomography (CT) with oral and venous contrast. The accuracy of unenhanced CT for diagnosis in this setting has not been widely studied.

Objectives: To assess the accuracy of unenhanced CT in establishing the etiology of acute non-traumatic abdominal pain.

Early recurrence of ileocolic intussusception after successful air enema reduction: incidence and predisposing factors.

Purposes: Early recurrent ileocolic intussusception (RICI) is a rare event. We aimed to estimate the rate of RICI and identify predisposing factors for early recurrence for children treated in a tertiary-care academic medical center.

Methods: Consecutive children who were diagnosed with ileocolic intussusception (ICI) during the years 2005-2015 and had successful enema reduction were included.

Outcomes of interval appendectomy in comparison with appendectomy for acute appendicitis.

Background: Traditionally, patients treated conservatively for periappendiceal abscess or phlegmon would subsequently undergo interval appendectomy (IA); however, recent evidence has shed doubt on the necessity of this procedure. This study aimed to assess the outcomes of patients who underwent IA, in comparison with those operated acutely for appendicitis.

Materials And Methods: A retrospective analysis identified patients who underwent IA between 2000 and 2016.

Cardiac tamponade and coronary artery pseudoaneurysm after brachial arterial embolectomy, possible role for an aberrant origin of the right coronary artery.

A patient developed hemopericardium shortly after left brachial arterial embolectomy using an embolectomy catheter. Evaluation disclosed evolving pseudoaneurysm of the right coronary artery that was successfully managed by stenting. Misplacement of the embolectomy catheter within the coronary vessel was facilitated by an anomalous origin of the right coronary artery.

Fatal Mesenteric Ischemia Induced by Synthetic Cannabinoids: A Case Report and Literature Review.

Worldwide use of synthetic cannabinoids (SCs) is rapidly increasing, in part due to the generation of numerous new compounds, sidestepping legal restrictions. Their detection using standard toxicology panels is difficult, due to their vast heterogeneity and lack of structural resemblance to cannabinoids. Sympathetic overactivity and arterial spasm play a role in some of the life-threatening reactions to SCs, such as coronary or cerebral vasoconstriction.

Postmortem Computer Tomography Appearance of the Aortic Arch in Children: What Is Considered Normal?

Background: Virtual autopsies by computer tomography (CT) or magnetic resonance imaging can be valuable in cases of unexplained infant death. The radiologist must be familiar with the normal appearance of all the segments of the thoracic aorta in normal and deceased children. A thorough review of the literature revealed no prior articles describing CT changes in the ascending aorta or the aortic arch in pediatric virtual autopsies.

Clinical impact of Pseudomonas aeruginosa colonization in patients with Primary Ciliary Dyskinesia.

Background: Airway infections in Primary Ciliary Dyskinesia (PCD) are caused by different microorganisms, including pseudomonas aeruginosa (PA). The aim of this study was to investigate the association of PA colonization and the progression of lung disease in PCD.

Methods: Data from 11PCD centers were retrospectively collected from 2008 to 2013.

Extending the Spectrum of Radiological Findings in Patients With Severe Osteopetrosis and Different Genetic Backgrounds.

Purpose: To evaluate radiological findings in a cohort of 22 patients with infantile malignant osteopetrosis in order to establish the correlation between radiological findings and different genetic backgrounds.

Materials And Methods: Clinical files, genetic analysis results, and radiological examinations of children treated for osteopetrosis with bone marrow transplantation in a referral center in the last 5 years were retrospectively evaluated. The study received institutional review board (IRB) approval.

CT differentiation between tubo-ovarian and appendiceal origin of right lower quadrant abscess: CT, clinical, and laboratory correlation.

To investigate which clinical, laboratory, and CT findings potentially facilitate the differential diagnosis between tubo-ovarian abscess (TOA) and periappendicular abscess (PAA), we retrospectively reviewed abdominal CT examinations and medical records for all women who presented to our medical center with unilateral right pelvic abscess formation who underwent CT evaluation from 2004-2014. A wide spectrum of clinical data and imaging findings were recorded. CT diagnoses were made in consensus by two experienced body radiologists blinded to the final diagnosis.

Value of repeat CT scans in low back pain and radiculopathy.

We assessed the clinical value of repeat spine CT scan in 108 patients aged 18-60 years who underwent repeat lumbar spine CT scan for low back pain or radiculopathy from January 2008 to December 2010. Patients with a neoplasm or symptoms suggesting underlying disease were excluded from the study. Clinical data was retrospectively reviewed.

Diagnostic value of CT compared to ultrasound in the evaluation of acute abdominal pain in children younger than 10 years old.

To assess the diagnostic value of ultrasound compared to CT in evaluating acute abdominal pain of different causes in children 10 years of age and under, hospital records and imaging files of 4052 patients under age of 10 who had imaging for abdominal pain were reviewed. One-hundred-thirty-two patients (3 %), (74 males/58 females) who underwent ultrasound and CT within 24 h were divided by age: group I, ages 0-48 months (25 patients); group II, 49-84 months (53 patients); and group III, 85-120 months (54 patients). Diagnoses at ultrasound, CT, and discharge were compared.

Association between renal cystic lesions and bilateral Wilms' tumours.

Objectives: Evaluate a potential association between Wilms' tumour (WT) and renal cystic lesions.

Methods: Digital records and imaging files of consecutive patients diagnosed with WT between 2004 and 2014 were retrospectively reviewed under an Institutional Review Board waiver of informed consent. The locations of renal cysts seen on US, CT, and/or MRI were recorded and compared with the locations of newly developed WT.

Use of low dose computed tomography with 3D reconstructions for the prenatal evaluation of suspected skeletal dysplasia.

Background: Sonographic evaluation of congenital skeletal dysplasias is often challenging. Ultrasound may be limited in demonstrating the skeleton and may overlook specific signs of skeletal abnormality. Computed tomography (CT) with 3D reconstruction was proposed as an aid in the diagnosis of skeletal dysplasias.

Intracardiac mass as initial cardiac manifestation of Behçet's disease: think before you cut.

Behçet's disease (BD) is a chronic multisystemic inflammatory disorder. Cardiac abnormalities including intracardiac thrombi have been described in up to 16% of cases. The clinical presentation of cardiac complications in BD may include fever, dyspnea, chest pain, hemoptysis, and edema.