The size of the Hill Sachs defect increases during reduction of a first time shoulder dislocation in older adults: a pilot study in 20 cases.

Purpose: To evaluate if the size of Humeral Hill-Sachs Defects (HSDs) increases during reduction in the emergency department (ED) in subjects that have a first-time anterior shoulder dislocation.

Methods: Subjects more than 18 years old presenting to the ED a first-time anterior shoulder dislocation were included. A computed tomography was performed prior to any reduction attempt (Pre-CT).

A higher D-dimer threshold for predicting pulmonary embolism in patients with COVID-19: a retrospective study.

Purpose: COVID-19 raises D-dimer (DD) levels even in the absence of pulmonary embolism (PE), resulting in an increase in computed tomography pulmonary angiogram (CTPA) requests. Our purpose is to determine whether there are differences between DD values in PE-positive and PE-negative COVID-19 patients and, if so, to establish a new cutoff value which accurately determines when a CTPA is needed.

Methods: This study retrospectively analyzed all COVID-19 patients who underwent a CTPA due to suspected PE between March 1 and April 30, 2020, at Ramón y Cajal University Hospital, Madrid (Spain).

Spectrum of PET-CT pelvic pitfalls in patients with gynecologic malignancies.

Integrated positron emission tomography-computed tomography (PET-CT) represents a major technologic advance in oncologic imaging of patients with gynecologic malignancies, since it improves localization of regions of increased 18F-fluorodeoxyglucose (FDG) uptake and staging/restaging accuracy by allowing a near-simultaneous acquisition of co-registered, spatially matched metabolic and anatomic data in the same examination. However, physiologic processes, normal variants, and many benign lesions within the pelvis can accumulate FDG and may be confused with malignant neoplasms. Conversely, false-negative results due to malignancies with low FDG uptake can pose a diagnostic challenge in patients with gynecologic cancer.